Joey
Matt Leblanc probably won't win any Oscars -- so far his contribution to cinema has consisted of a rather tepid beefcake hero in the movie version of Lost in Space and a starring role in a light comedy opposite a simian, if memory serves.
But I fully admit he's a guilty pleasure in his role as Joey on Friends. The writers hand him some of the best lines on the show, and his comic timing, facial expressions and delivery always make me laugh out loud. Every damn time I watch the show.