I've chosen the Glock, for the same reason I like the AK and the FAL. Simplicity and reliability. You can argue all you want, but 1911s are typically less reliable out of the box than Glocks, unless you buy quite a bit more than bare bones. For field stripping and maintenance, the Glock wins. For accuracy, I go with 1911, but it's relative (3 in at 15 yards versus 4 in). Overall, the 1911 is a great design, but the Glock is beats it out. Is it as pretty as a 1911? No. It's a tool, that doesn't really allow for the type of customizing that the 1911's wood and steel offers.
And, yes, I own both, and have had my 1911 the longest.