Stone, Rutan, Shermer, DeGrey, Deutsch, Jeff Hawkins, Stephen Hawkins. Murray Gell-Mann for expressing in a very simple and transparent way what most people who have a sense of design and/or engineering have felt since they first played with lego as kids.
Ben Dunlap was ok. Yossi Vardi - Who let the geeks out?!
Stephen Pinker, great ideas presented to (probably) a lot of people who hadn't thought of em, but done a bit too crypticaly.
Worse: Warren, Dawkins for being so extremely rabid an activist, Jill Bolte Taylor for being such an airhead hippie; Sherwin Nuland did a much better job on a similar topic. Frank Gehry for presenting a nice talk in such a constipated way. Deborah Gordon, another one who might have something interesting to say, but presents it in a way I can't bear for more than a minute.
Matthieu Ricard, Phillipe Starck - two frenchies who never bothered to make their accent and mannerisms understandable to the non-french.
Just off the top of my head...
