Cpq Best class

Personally I prefer map 5/6, as long as someone in your party is capable of killing rombots fast. I've seen brawlers do *really* well in CPQ, but I did fine on a lukless sin with some funding. Clerics can be really useful too, especially when the other team decides to summon chronos. Also, I have a hunter that can cpq as well, and it's fun because the high accuracy will render avoid ups powerless against you.

All in all though, I think you should go with a brawler.