Kite and Tokio are top tier IMHO.
They both can be played in such a way that when done perfectly, they're unbeatable. Kite uses his skill trigger + Square/circle, while Tokio uses his skill trigger + X (which goes through most attacks) until he builds enough bar to time stop.
Tsukasa isn't bottom tier because of play-style, he's simply unplayable period. Me and my friend tried for a few hours to figure out a way to use him that doesn't suck. The closest we could get was using him to win by attrition with his ground trap things. And even then winning is very very difficult.
Guilty Dragon Friend ID: 763428373