Who did you hate the most?

Yeah, early Neelix is the reigning champ. He may be slightly less so if he had just kept his original outfit from ep 1 instead of his technicolor seizure suit.

They made Tuvix in an explicit attempt to show that comparatively Neelix isn't such a monstrosity.
They only partially succeeded.

God save Janeway the caffeinated for saving the day!