Blitzball was good in small doses, I think. It was an enjoyable game but at over 10 minutes a game it does wear you down a bit after a while. I liked how in-depth the game was and how much thought had gone into the different aspects of it but it really had to be something that was done once every now and again really.

Chocobo Hot & Cold (and the subsequent Chocograph treasure hunting) on the other hand, I really enjoyed and was quite content to play for large periods of time during my last FFIX playthrough.