The Nagoya team is the clear victor for most awesome to pair with. All 3 of them are awesome, personality wise. Combat wise, Jungo is a tank. I sorta overpowered my main 3 teams with demons...so my 4th usually had crap leftovers. Jungo didn't give a shit, he could still take out groups of demons, by himself.
Fumi seems to be the #1 magic user. She kicked some serious ass when I was using her. She's not even that fragile. Airi is kinda useless...but she's still awesome and adorable so that can be forgiven.
Forgot to say, thanks for the help on the 2nd day battle with piano girl, it really helped.