Sam Kinison was as funny as a self performed root canal with a Dremel tool...once in a while he would say something funny.
Larry the cable guy is a perfect characterization of the redneck trailer trash hillbilly...mindless humor, and it's funny...just like some of the same characterizations that Red Skelton and Jonathan Winters did decades ago...they just didn't make a career of being hillbillies.
I do get tired of the "git er dun" stuff as well...as much as I'm tired of the Jeff Foxworthy "you might be a redneck..." jokes.
Bill Engvall's here's your sign routine is something we all find ourselves wanting to do to someone or being the target of, and that is what makes his stuff funny.
Ron White is either on or off, depends on how much he's had to drink.
The worst comedians are the ghetto "f*$& yo mamma b@&*" crackheads that have hit the stages over the past 10 years...and some of the funniest are the Arabic comedians.