I can't stand CC's battle system. The lack of combinations, which is something that made CT's battle system, was horrible. Not to mention the terrible element system. Ugh. And summoning was worthless. I think I summoned once the entire game. The battle system has some nice ideas, and some of the boss battles are hard as fuck - which is nice - but, most of them weren't realized and it seemed like there was way too much useless stuff (like summoning).
The only thing I liked about CC's battle system was that I could run away from all battles, including boss battles, in case I wanna beef up my strategy, and the attack % thing.