It would be really convenient, but if you ask me, i would say that some abilities are, in my opinion, really unneeded, saved some exceptions, for example there's a point in the game that some phodom's skills are really disposable. You can make your own "skill build" based on some info around the forums or you can do like me start your first game with a bugged skill that can kill you permanently
. If you're too lazy(like I was before making that stupidity) to look around the forums, there's always the give up option in chapter 4
(very convenient since you'll test all characters skills you picked, AND make some extra money for the next play)
Another thing, the "stagger, bleed, whatever" system can be useful, but it isn't necessary, especially in some easier difficults.
Obs: this is my personal opinion.