Favorite Bow: II. Pretty useless in battle but he was still a big load of fun. I found it particularly amusing that pretty much the whole plot happens because he gets in trouble.
Favorite Wyndia: IV. It's the music. I also like the family drama in this game and how it gets resolved. (if you haven't played it, it gets resolved very, very panfully)
Favorite fishing: IV. Can;t recall it too much though since I was never a fan, but I enjoyed it more than III's, though I'm pretty sure they were similar.
Favorite final dungeon: II, I think. But that's mostly because the other four weren't that memorable.
Favorite secondary antagonist: Yuna!!!
Favorite recurring enemy: I honestly can't think of anything right now. Imma need to replay the series.
Favorie Dark Dragon: Fou Lu, definitely, though he's followed very closely by Teepo