Favorite: Gundam Federation vs. Zeon. Capcom Gundam fighting game goodness, plus it's one of the few fighting games you don't need to be super skilled at fighting games to master.
Hated: Dragon Ball Z Ultimate Battle 22. JANK. Horrible fighting game that looks like dog doo doo and plays just as bad. The saturn port, from what I gather, is better than the psx.
I remember a lot of good Dragonball Z games. Budokai Tenkaichi (I think?) on PS2, and Legacy of Goku 2 + Buu's Fury on GBA in particular were a good time.
One Piece Pirate Warriors is very head-empty, even for a musou game, but it's still dumb fun.
Didn't really play enough to have a "most hated".
Would love to try some of the one piece musou games but I don't have a console.
They're on PC too. 4 and 3 anyway.
Oh cool did not know that! Ah doubt my pc can run them tho