I would say Frankie Boyle is more offensive. Like this one of his, about Michael Jackson & what he'd do to kids:
"I'm gonna dress up as a surgeon, I'm gonna do operations on em. Put little cocks & little clitoris's into the palm of their hands, so when I'm holding hands with the, I'm actually abusing the little motherf**kers." Frankie Boyle
And his disabled jokes are more nasty than CB.
Has Frankie Boyle said this on one of his shows that's been shown on TV though? That's actually what I meant. I can't believe any TV station would allow that joke to be shown on their channel.