If you are using this poll to choose your next 1911, you are going about this wrong. The "best" 1911 is entirely subjective, depending on your budget, wants, needs, etc. For some people a $400 RIA is the best, since it's cheap and will work great for their limited needs. For others, nothing less than a $5000 full blown custom will do, since they have the needs and the skills to wring every last bit of performance out of the gun, or maybe they just have an unlimited budget and enjoy expensive toys.
If I had to name the absolute "best" 1911, then it would probably be something from one of the various master 1911 smith's like John Harrison or Ted Yost. However, while I dream about them, I don't have the cash. Right now, the "best" for me is Colt. They build a better gun than most of their competitors, and I love their classic style and history.