The Comedy Central Roasts: Who Should They Really Be Roasting?

With the Roast of Charlie Sheen airing tonight, it seems to me that my thoughts about the Comedy Central Roasts in general would be especially relevant.

To me, most of the people they do the roasts for on Comedy Central aren't worth the effort. I mean, David Hasselhoff and Flavor Flav? Really? I don't like Larry the Cable Guy, but I totally get why they roasted him, and William Shatner made sense too.

But there are people who seem so obvious to me, it seems weird that they haven't been roasted already. Here are a few of them.

Jon Stewart: He is on Comedy Central, he has appeal outside the network and on The Daily Show, he has worked with quite a few people who have gone on to projects of their own. This one seems like the most obvious one.
On the Dais: Stephen Colbert, Steve Carell, Ed Helms, Garry Shandling, Dennis Miller, Ricky Gervais, Bruce Springsteen
Surprise Guest: Bill O'Reilly

Louis CK: A comedian's comedian and one with a successful cult television show, and he would be hilarious when he was tossing back the insult during the final act.
On the Dais: Chris Rock, Conan O'Brien, Jim Norton, Opie and Anthony, Marc Maron, Ricky Gervais (he isn't going to be on all of them, but yeah, this one too), Nick DiPaolo
Surprise Guest (though not so surprise now): Dane Cook

Bill Clinton: Come on, you know there are still a lot of jokes floating around a bunch of comics heads that haven't been told just yet. And I don't think GWB would agree to do one, especially after the infamous WC Dinner ripping from Colbert.
On The Dais: Talk Show Hosts... it would be fun hearing Conan/Letterman rip on Leno to his face too. Plus Jon Stewart/Colbert
Surprise Guest: Jimmy Carter

Bill Cosby: You have a grandmaster of comedy, one who was instrumental, along with a few other pioneers like Dick Gregory, helped mainstream black comedians for the American public.
On the Dais: Dick Gregory, Eddie Murphy, Chris Rock, Dave Chappelle, Patrice O'Neal, Paul Mooney, Larry Wilmore, Alonzo Bodden
Surprise Guest: Phyllis Diller or Joan Rivers

Now I wonder, who would you like to see Comedy Central roast?