Everyone is allowed to have an opinion, you didn't say "I don't like Johnny", you said he was bland, which I found odd since he is a character who grows throughout the entire part, unlike say Stardust Crusaders where it's mostly just a fight from point A to point B, SBR is the journey of these characters, especially him as he grows.
No one is saying you aren't allowed to not like him.
Or maybe i didn't noticed him too much because Gyro was too awesome that i didn't payed too much attention to Johnny, or maybe that when i read that part, i was too shocked of the universal reset, and i wasn't too nice for another Jojo that isn't a mainline, but an alternate dimensional one, anyways, as i said, i need to re-read everything in order to understand better, i read Steel Ball Run when i was younger so, maybe some of my thoughts were crossing and i couldn't understand him complete.
Maybe i'm just upset because Giorno is too fabulous for some, and because he has GER the most broken ability in all fiction, although i love this character (especially the pose with GER, so awesome) i can't say that he doesn't have flaws, he is smart, but sometimes not, i think that many people are upset because Bruno was more unique and interesting for some, some say that he should have been the Jojo of this part, although i do love me some buccelatti, Giorno is a fairly interesting character, and i have to say, even with many people throwing shit at him, you just have to see, he defeated Diavolo, and he wasn't a small villain, he could destroy Dio, Valentine and possibly Kars, although it was a obvious win for Giogio, he defeated him, you have to show some respect for him.