I own all of the above mentioned, as well as few others, and will say that for the money and quality, I would say that Guncrafter makes THE best semi-custom 1911 for the money out there these days.
Gen 3: G19,G20,G23,G26,G27,G29,G30,G30S,G32*,.50GI
Gen 2: G19
Gen 4: G17,G22
Gen 1: G17
NRA Life Member. www.1911addicts.com