FFVII's racing was good cause it never got boring and it only got frustrating when that mexican black chocobo beat you.

FFVIII's forest quests were alright, kinda tedious though.

FFIX, Hot and Cold gets my vote. It's was so darn fun! You have no idea how much I laughed when I first saw Choco heatbutt the ground. lol.

FFX with the training was too easy. Dodge balls and birds, wow.