I have two Colts, and one Kimber. About every maker has good ones and bad ones. Colt has come a long ways in their quality. I would go with Colt, Kimber, S&W, or maybe even Springfield Armory. Wilson Combat makes about the best mags IMO for the 1911, specifically the 47D. One thing I will mention. Slide fit doesnt have that much to do with accuracy as it does reliability. Too tight a slide to frame fit can lead to a gun more prone to malfunctions from dirt, etc. Colts will often rattle if you shake them, however that is how JMB designed them, and my Colt will shoot just as accurate as my Kimber that doesnt rattle. So dont let that scare you from any one make. 1911forums is a good source of info btw.