So you're choosing between FFTA or FFVII style of game? Personally... I liked FFVII because it had a kick-ass storyline, and I've beaten it about a million times, and I haven't even fully completed all 300 missions on FFTA yet, but all of my guys are level 99, max stats, etc. So that game got boring fast, but, why not try and combine the ideas, hmm? If you can't choose, just combine the ideas... say like... Have FFTA style type of battle system, but when you move your guy onto another person, it'll go into a FFVII style battle, and you'll have to duel it out with the other guy. Just try it out and you might find an interesting compromise... Have fun! :3