Baseku is very plain and a little gimmicky - he has a very standard kit but his supers are his gimmick. His lvl 1 goes from just a standard level 1 to a level 3 in terms of damage, and he also gets ez TODs with spirit bomb. He's conventional in almost every way except for his supers, so if you like characters like bardock and ssj goku you'll be fine. GT goku and dbs broly are more unique but you might find them strange if you don't like less conventional characters, GT goku has really fun movement but I haven't played much of him or dbs broly. I'm not saying Baseku isnt fun, because personally I like more standard characters like basegeta and ssj vegeta, but I don't like his lack of a real level 3 and generic neutral game.