I believe that I know polls. I can hardly remember when I didn't look at polls, and in all of my experience, there is one pollster that is way above the rest and that is Nate Silver. He is just hands down the best, proven by his track record. Nate was so good last time that the NYT contracted his company through the 2012 elections. He's not a Republican and he's not a Democrat; he's a mathematician.
And Nate has just posted some really interesting stuff about Herman Cain: