Non tier related question: What made Sentinel/Cyclops so different that only JWong played the team at that level? What exactly are the differences between Capcom B and Cyclops B?
Capcom reaches the top of the screen, has a huge horizontal hitbox, and does huge damage in one hit (so followups aren't scaled), but is not actually invincible.
Cyclops is invincible, does not reach superjump height unless you wait for the shot at the end, and has a smaller horizontal hitbox overall than CapCom, but he is easier for lots of characters to combo after.
Cyke is a pretty decent point character. He has good meter build, decent mobility, a REALLY GOOD DP that for one bar you can make safe or convert into around 40-50% damage, an infinite, a REALLY good launcher and some excellent air buttons, as well as a good chip super and a pretty good DHC in. When he's the only one left you don't put down the controller.
CapCom is a terrible point character. He has no air mobility except using Captain Fire to slow his fall, very bad unsafe normals, very bad unsafe specials, very bad unsafe supers, no good DHCs in, and Captain Sword is risky and drops often.
CapCom is enough of a better assist that people prefer him even though he himself is crap, but Cyke covers a lot of the same bases and is a way better point. Also, you can stuff CapCom, but you can't stuff Cyke. These are the main reasons Justin uses Cyke.