I'm sorry I didn't get a chance to vote, but I pretty much agree with the standings; Seinfeld is the greatest comedy ever to grace my television, and The Simpson's is a close second regardless of their recent downward spiral.
I'd probably put Curb a little ahead Family guy and Arrested Development lower because, although it was a great show, it just wasn't really hilarious. I also agree with the bottom three, although I would put Mad TV at the very bottom since it doesn't even deserve the company of the other shows listed; the "poor man's SNL" is for people who don't get clever jokes about current events... not to say that SNL has been particularly clever lately, but you have to give credit to a show that's run 30 years. I've always disliked Frasier, although I watched it all the time in spite of its dumbness. I always felt weird after sitting through an episode, like I did something I shouldn't have done, but I'm not exactly sure what.
Finally, I would easily have put The Daily Show in the top 5, but I can see how that was understandibly omitted to avoid political squabbling.
When's the next vote off?