I - Good, solid game. Your team is whatever you want it to be, which is cool, and gives it replay value. Not much of a story though. Most of the dunegeons are fun. Three stars ***
II - Not great. The level up system is atrocious, and that hurts it a lot. Because of that, the battles can get really boring and are mostly pointless. The bosses are not well proportioned to the rest of the enemies in the dungeon. I could wail on everything and do 3 damage against the boss. Music and story are pretty good though, and you get some cool temporary characters along the way. Two stars **
IV - Awesome! My third favorite game. It's pretty straightforward, really. There's not much variation you can do from game to game, but that doesn't take anything away from it. The characters and plot are both great, and there are plenty of sidequests (much more than the first two) with some cool rewards. The charaters have pre set abilities for the most part, but you get such a diverse range of them that it doesn't bother me. The challenge is almost perfect, not too hard, not too easy. Four stars ****