I know one that doesn't have it. Bob Saget. His latest HBO comedy show for me was uncomfortable (at best) to watch, maybe i didn't get it, dunno.
Another one that doesn't have it is that Mencia guy, hate his comedy, plain moronic.
Totally agree with you about Bob Saget and his HBO show. I can't say I didn't chuckle once or twice, but after 10 minutes or so it was just obscenity for the sake of shocking people with the fact that 'Family Matters' & 'America's Funniest Home Videos' guy can swear a lot.