Having owned several of both, I vote for the 1911. I love most everything about the Glock -- lightweight, simple operation and takedown, good trigger and sights, high capacity, rust-resistant finish, available in a variety of calibers. But I'm 5'10", 185 lbs., and have smallish hands. I could never shoot my G19 as well as I wanted to, a fact I attribute not to lack of practice, but to the large diameter grip. My Colts, on the other hand, make me look like an IDPA champ. I have both a Govt. Model and a Combat Commander. The both fit my hand perfectly, I shoot them wonderfully, they are COMPLETELY RELIABLE, are easily tune-able, and chamber a hard-hitting cartridge that doesn't need to be "bumped up" come winter time because I might be facing a goblin wearing a down or leather jacket. I don't fault anyone for choosing a Glock over a 1911 -- for me, that's what I shoot best.
LBC