I just ordered a Springfield Loaded "Parkerized" and the Wilson CQB is next on my list, however I don't think it's fair to compare high-end 1911s with factory-stock Glocks and HKs. High-end 1911s go for $1800 to $3500 and more. HK's Mark 23 is about $1800 street. Now, can anyone here argue that a Wilson CQB, or even their $3,500 gun is more reliable and/or durable than an HK Mark 23? I doubt it. And the Mark 23 shoots with match accuracy. One could argue for the 1911 trigger, however.
The problem is the 1911 design is dated. To gain accuracy, you need to tighten things up. That leads to unreliability and the additional costs associated with hand fitting and fine tuning. I love 1911s and I understand the additional cost is necessary. This is the price we pay.
For out-of-the-box, factory guns, I don't think there is anything available that's more reliable than an HK or a Glock. Don't take my word for it. Spend a few days at Glocktalk.com, HKPro.com, 1911forum.com, etc. Without a doubt, the guys with mid-range 1911s ($500-$1000) have many more problems than the guys with HKs and Glocks. This includes Kimber, Springfield, etc. Wilson has a better reputation, but it cost you. If you're willing to spend the money, you can get a 1911 that's almost a piece of art (like the CQB). However, it's not fair to compare these to stock Glocks, which by the way, are just as reliable, if not more reliable, than the high-priced 1911.