Grimmy is apparently racist, but I'm more concerned with the horribleness of this pun.
Runners-up: Argyle Sweater, Baldo, Curtis, Family Circus, Hagar the Horrible, Non Sequiter, Piranha Club, Red and Rover, Rhymes with Orange
Candorville is one of the better strips in the paper, and is well worth reading on a daily basis. Darrin Bell uses his character's personalities to set-up his jokes, and he does it well.
Runners-up: Dilbert, Frank and Ernest, Zits