Ummm, you can play as ss4 goku...
Yeah he had a summersault kick or something that was probably the most useful move in the game.
I had Legends and Final Bout on PS1. Used the knock off game shark device to play it. Funny thing was, mom and pop game store here in town use to have multiple copies of the import. It was a very long time before it came to the US. I remember seeing it at Best Buy thinking how amazed I was seeing a DBZ game for PS1.
I enjoyed the PS2 titles, 3 was probably my favorite. The game board world was fun.
I have Battle of Z on Vita and it feels like an arcade game, so I wouldn't say it's the best. I don't know whatever happened to the Dragonball MMO that was out at one point in time.
I also have Dragon Ball Z: Extreme Butōden, which is ok. I mean, it's not 100% like the fan made fighting game Hyper Dragon Ball Z, which we should have had something like this by now.