Who is the funniest person in America?

Demetri Martin. Low-boiling and boring. Wears the whole young hipster look but is in late '30s. Creepy.

This is a list done by people in their 20s. The list of who is missing to way too long to write in here.
Funny is subjective but the funniest people are those that make us laugh out loud, big belly laughs and more than once in a half hour.
Letterman? He likes to hear himself talk.
Go rent Richard Pryor, Eddie Murphy, Tim Allen, Seinfeld. Concerts, not sitcoms. Then make a list.

david letterman? REALLY? WTF ppl!!!

flight of the conchords bret mckenzie & jemaine clement!!!

Howard Stern

the real top 5 (in no particular order)

- Dave Chappelle
- Conan O'Brian
- Matt Stone/Trey Parker
- Steven Colbert
- Chris Rock

i can't really understand having Jack Black AND Will Farrell both on there. I mean, they pretty much do the same thing. To take it a step further, if you're going to put 2 one-trick ponies like then on there then i argue you should put Jim Carrey on there in BOTH their places since he got started before them and does the "wacky" thing so much better.

Aside from not having to listen to hollywood cry like little girls the only other reason I look forward to Bush leaving office is the vindication of watching Jon Stewart's career begin a slow painful death. I mean seriously, if he didn't have W around is there any reason to believe he wouldn't be taking bit parts in Adam Sandler's movies or doing the news desk on SNL?

I always thought Albert Brooks was pretty hilarious.

As long as there is no Dane Cook, my mind is at ease.

I think Richard Pryor will be the funniest man to ever live. It's a shame his career and life was cut short by discease and addictions.

Letterman and Conan should be way lower, and Gervais should be way higher.

the Seth Rogan crew should also include Jason Segal, who masterfully wrote Forgetting Sarah Marshall

And if you include him, why wasn't Bays and Thomas on that list?