Doh, FFX and FFX-2 in combat style are like FF1 and FF7 in visual style.
Unlike FFX which was predictable in combat as much as it gets, in FFX-2 a minimal error in decision could end your game in a single swipe, loved it when I had to fight immune mobs while not being really ready with the dress sphere

FF13 looks nice and has a nice story from what I read on so far, but other than characters and story, it doesn't really have much to offer in interesting combat, since FFXII SE is trying hard to make an interesting combat but fails on the simply stuff they were doing up till FF9 in combat style, and the only interesting thing was in FFX-2 with the changing class in-battle and anything afterwards started to be cheap.
Youtube only makes it less appealing when you look at combat in 13, and versus makes it even less interesting combat-wise. this is the reason why I am still not buying PS3, I thought FF13 would be incredible and I could finally play something really hard, but it seems like Visual experience is still the biggest priority for SE.