I voted Colt, 'cuz that's what I have.
It's an early stainless Commander, actually my first handgun. I was looking for a full-size 1911A1 clone, but I read a review by Mas Ayoob, then found mine at a good price.
It's been lightly customized with ambi safety and arched MSH and except for a broken slide stop, has been flawless.
What's interesting is that while Colt has far and away the most votes, it has had the fewest comments on this thread...I guess that means the Colt owners don't need to say much...