This is something I'd been thinking about, and I don't think it's been done on here. This is far from a complete or coherently ranked list, but a post by JR in the movie thread prompted me to throw this out.
What are your favorite characters from either movies or TV? I'm thinking not only of a character, but, in the case of movies, specific actor/movie/character combos.
Here are some examples (again, in no particular order):
Doc Holliday - Val Kilmer ("Tombstone")
Dr. Evil - Mike Myers (The "Austin Powers" flicks)
Hans Gruber - Alan Rickman ("Die Hard")
Mortimer Brewster - Cary Grant ("Arsenic and Old Lace")
Elwood P. Dowd - Jimmy Stewart ("Harvey")
Al Swearengen - Ian McShane ("Deadwood")
Doc Cochran - Brad Dourif ("Deadwood")
Lester Freeman - Clarke Peters ("The Wire")
Avon Barksdale - Wood Harris ("The Wire")
Mayor Richard Wilkins - Harry Groener ("Buffy the Vampire Slayer")
Arthur "Big Guy" Carlson - Gordon Jump ("WKRP in Cincinnati")
I'm sure I'm forgetting a bunch. Got any?