Honestly, any of the major production 1911s will put out a quality 1911 that's suitable for competition. There isn't really a "best" 1911 for competition when it comes to production 1911s. You should choose which features you want on it and go from there.
Adjustable sights might be preferrable, since you can adjust POI depending on what load you use in your gun.
Kimber, Springfield, Colt, Dan Wesson, Smith and Wesson... all should do you quite well.
Good luck!