Three things that killed the game for me at key moments:

- Blitzball, particularly the game with the smurfing Luca Goers. I literally fluked that win.
- Lightning Dodging can just die in a hole somewhere.
- Chocobo Racing and that dreaded 0:00:00 limit drove me insane.
- Butterfly catching can go die in an adjacent hole

It's the only Final Fantasy game that makes the Sidequests less fun than the core storyline. It's ridiculous, storylines are meant to uplift the game and make it interesting, not more dull and tears your hair out on a daily basis...