Dowd is my favourite.
He doesn't seem like he has a big team complex, which sticks out most in my memory is the John Terry red card in the first couple of minutes a few years ago. Best of a bad bunch.
Not saying Webb, he's the type of Ref who wants the game to be about him, will lash out a couple of early yellows early on regularly, which makes the game lose some of it's fluency imo.
I'd say Clattenburg, Mariner, Probert and Atkinson are the worst. The latter being my most disliked, due to the fact, he seems to despise us, i can't remember him having a good game for us EVER, and is usually loves something controversial.
Past favourites have included Durkin, and Barry Knight. Hated Winter, Ellerey and Rennie.