Gee, it's hard to pick a worst. Most of the current ones are worse than the older ones.

One guy I remember was Johnny Malotte, Mark trail's stereotypical Quebecois sidekick. Around Halloween they'd put cut-outs of Mark & Johnny on the back of cereal boxes, for a really cheap costume.

Family Circus, i agree, terrible, but I hate anything wholesome.

I have to strongly disagree about Dick Tracy. Chester Gould was totally screwy, but that made the strip fun. I still have collections which I reread with pleasure. He included strange personal messages about magnetism. His villains were wonderfully grotesque, and their demises were particularly gruesome. I still have nightmares about his strips; what higher praise could there be?