I would like to put my two cents in because I think its a good cause and SHUT UP AND TAKE MY MONEY
ahem*
Anyways, Val is a great character. She's well designed for what she does, just like the rest of the cast. You may think of her as great, terrible, ok, the worst, the best, whatever, but that is not what discussing a character should be (one line epithets like "shes op", or "Shes the worst". The fact that Mike says that Val is great, despite never playing her (idk about this though) and only seeing three players do much of anything with her (Duck, Omni, TOOD), should mean something (you know coming from a long time competitive player, who is actually good from what I have seen, and last time I checked he pretty much made them gameplay wise). He would probably know something about his cast. But never mind that now.
What I keep hearing about Val is two extremes: Either Val sucks (group 1- coming from vocal players who seem to find less than optimal play from her), or say she is good/great/op (group 2- who generally only say this when the first group says something). Yet she has yet to see high competitive play (sans those 3 prior mentioned players). Are they the only ones that group 2 has played (most likely no), do they sometimes get random-ed out ONLINE (probably). But even then an opinion based on a bias is going to be exactly that: an opinion that is biased (Don't shoot me). Pretty much neither of these groups can share info and have a good discussion without ceding a few points:
1. These are opinions based on preconceived notions from ones own experience, and should move on to talk about what are her strengths and weaknesses are and the overall ability of the rest of the cast to handle said strength/weaknesses.
2. This game is so variable (due to the obvious: Team size, team order, assist choice) that many past concepts of forming tier lists/meta-gaming/jumping the bandwagon fail to apply to this game, at least it has in the grand scheme of what we call a competitive scene (Come on guys this can always be better if you join it).
3. Thinking about asking for buffs in areas not needed, and asking for nerfs where it is not needed, should hopefully never leave your head at least when conversing in a discussion of a fighting game character (I mean Mike has been better to us then most game developers have ever been, and they actually made money on their games for most of their lifespans, so cut the buff/nerf requests
So now that the "Stop Bitching" disclaimer is set, I will proceed to tell you why I believe that Val is great!
1.Val is a fast character. Now before you hit me with the, "thats obvious", let me explain. Valentine to me seems to have been designed with a fast punish game: having a vast array of tools in order to bait her opponent into doing things they they normally wouldn't. Tools such as dead cross, body bag, IV pole as well as her cr.mk (max range), and her j.hp (pivotal move:safe on block, lots of blockstun, and crossup utility), are made for spacing, as well as meant to be carefully spaced, you know as if you spaced a move where your opponent will be rather than where they are, yet maintaining a safe distance. Her run is very well designed for this purpose, it is just a straight run that has low startup and ending time, so she has the speed to advance upon her enemies space when she has conditioned her opponent or going in for a read. These all seem to point to a less then braindead, "Oh, let me just run up and spam j.hk/j.hp/s.hk because they are op lol", and more of the "what can I do to olutplay my opponent/Go where I want them to go". Her airdash seems to be angled in such a way so that instead of just a crossover tool or a fast movement (not that fast if you try using it alot), it can be used DEFENSIVELY as well, such as avoiding setups (backdash-airdash cancel) or even reversals (there is a way to avoid pillar with it, sadly have yet to find the perfect timing for it). Of course, the variety of angles it gives her moves is great as well, as she is one of, if not the only character to have such trajectories for attacks. She also has one of the best tools to bait reversals, pushblocks, and even mashing: j.mp. This move is feared by many, and for good reason. It is one of 2 air normals that allow for easy air to air conversion (j.mp and j.hk), as well as being multi-hit (eats armor, harder to pushblock, etc). Her pressure in the corner with almost any hitstun inducing assist, with just j.mp is probably the best in the game, because just a super jump can give her the time she needs to setup her opponent or capitalize on their reaction. Overall: Greatest ground mobility, above average air mobility, and great spacing capabilities
2. Val has a strategic mechanic that has great synergy with her spacing: Dead Cross and Vials. Many seem to think when a Val throws a cross in midair, drops down and jumps and does it again is playing lame. In fact, dead cross is a very good conditioning tool. It can be used as a harry tactic to incur a jump in or dash under in which Val can respond to. Or it can be used to study your opponents gameplan and jump-ins, thus finding out preferred setups and avoiding them, or punishing them. Vials themselves act as a pseudo-resource for val allowing even more strategy to her style. There are 3 vial types: poison (DPS), hitstun (increases hitstun on vial and all other follow ups), and input delay (delays opponents inputs). A vial can be loaded to a max charge of 3, and any type change will add a level and change the current vial. This tool alone makes me love to play val, because it makes her dangerous whenever she loads a single vial. The second a vial is loaded, an opponent becomes aware that Val's damage, neutral, or reset capabilities multiply. She can inflict a daunting feeling into her opponents, because val can do so much with 1 vial, which in turn eases her weaknesses in neutral (will get to that).
3. Val functions with a variety of assists, not just reversals. Val has been shown to function so well with dp assists, that many dont even consider that you can run her without them. Val can be scary with any assist hit, due to j.mp and fastfalls (forgot to mention that earlier). So val with any lockdown, high hitstun, safe armored (lnl most likely), is a force to be reckoned with. She is absurd with dps because her run allows for the easiest conversions and the easiest corner carry from such an assist hit. Val is very good at converting, which can be done with almost any assist.
Now for why I think she is not so great.
1. Lack of reversal. Now don't me for this, but I have thought "what if val had a dp". I honestly used to think that val would be great, why doesnt she have one, gimme". I never thought how good it would be, even if it allowed absolutely no follow ups. An invincible return to neutral would be as some say "OP", because that is where she shines, converting hits and maintaining pressure, whilst baiting her opponents to make mistakes. If a reset button was ever given to val, I feel that she would BE the meta, not just a part of it. However, this is technically still a weakness, since her easiest reversal is limited to either EKG, Dead on Arrival (only if you feel you have the read, and by this I mean YOU HAVE THE READ), or level 5 (This should only be done if you know it will kill, or it will revive. So has meter dependency for reversals which is not the best, when under pressure (Baiting is great, so meter on a reversal that misses is the worst)
2. Lack of Anti Air. Vals grounded anti airs, cr.mp (decent), s.mp(less reliable), and s.hk (why do this). Her aerial AAs are jump into j.mp and j.hk. These do not do well against the variety of large hitboxes that some chars can swing around because of their less than stellar range and utility.Just just has problems challenging normals when you normally would want to (IAD shenanigans, opponent's jump in fierce or roundhouse, etc). She just has less options. For AA anyways
3. As I mentioned earlier, is that val can be very rewarding for smart gameplay, using her tools in a strategy for a good punish game or conversion game by enforcing her rule into neutral. However, if this is not setup, many characters can approach her unchecked, Para tear into float can mess with her big time (AA problems) bella j.mp. Painwheel in midair is very good against val (that matchup is the scariest chess match OMG), and others. If you get taken into their gameplan, val has trouble getting out due to her meter dependent reversals and pressure options.
Overall, I believe that Valentine's neutral is above average, her pressure is beyond average, her damage is below average (base), and her defense is playable, yet strained. Overall the scariness of her offense screams top tier, whilst her defensive options and neutral woes scream otherwise. Therefore. I believe in what I said earlier, Val is a contender for solid mid tier if not high mid.
So there you go, a book for only two cents, what a bargain :p