Any owners of these please give me some feedback. I will go into further details later when I have a moment but please provide me will some opinions of these as well as any other platforms.
Don't have any experience with those models, but my FIL has a Nitron Carry that I've shot quite a bit and really like. I came very close to buying a platinum elite 1911, but found some other "deal" that I just had to have. Now I've got my sights set on the Sig Traditional Match Elite. Can't go wrong with any of those choices though. Sig makes a very good 1911.
I just bought my c3 this week and have already put a couple hundred rounds through it. I've owned several 1911s and so far, I like the sig the best. I've got a springer a1 and a Kimber custom II. The trigger is a little better on the Kimber, but the sig handles a variety of ammo better, IMHO, and groups better for me. It fits my hand better. I can't speak for the other models you mentioned but i love the c3