They used to have this feature in the HDM every week. It always seemed to be Barry McDermott. As a player he fitted the bill perfectly, but now he appears universally liked. Splendid fellow.
anyway, most of my list is from pre-SL:
Andy Fisher - anyone remember him on RL Raw (Dewsbury v Rovers) slagging us off in the dressing room for singing our version of "Old Faithful" during a play off game (2001?)
Gareth Handforth - ten bellied to$$pot who was a central plank of the Donny headhunters.
Richard Chapman - probably 'cos he always played well against us.
Barry Eaton - see above
Since 2007:
Kirk Yeaman, by some considerable distance, although it makes it all the sweeter to watch him playing in Jake Webster's pocket during derbies.
Ghandi - coward who runs 40 yards to smack someone from behind
Ben Westwood and his ten foot chin.
Just compiling this list has raised my blood pressure!