Classic: 10 out of 10. Battle patterns are easy to memmorize. And I know all the gliches
X: 4 out of 10, that is, exept in the games where I can play as Zero.
Zero: 10/10 I rock at Zero because i've practised so much.
ZX: 9/10 Practicing with Zero made it easier but there are many new moves
Legends: Havent played.
Battle Network: 10/10. I can not remember the last time I've been deleted. I always focus my folder according to which area I'm in.
Star Force: 7.5/10 It was hard to get used to.