I like dthe concept of the first one, but it was too boring and shallow for my liking, plus the story mode was arse. I'll wait for the (U) or (E) version before I try this.
off topic: I recently played Guilty Gear X on the GBA and have to say I am amazed and depressed; amazed that it's so awesome, and depressed because they fucked up the DS GG game, WTF!?