I don't have a problem with Payload, just because it usually results in very good games and it's hard for it to stalemate too long like with a CTF or even some capture point maps.
I don't play Arena because I'm just not that good and I don't care for it.
KOTH is a big frag fest, which is okay, but I'm frustrated that non-offense classes(specifically: engineer) have almost no use whatsoever.