Eddie said it well.
I think the statistics show that mistakes happen more often with Glocks than with 1911's. A shirt tail caught while reholstering can pull the trigger on a Glock. While a shirt tail could also pull the trigger on a revolver, but revolvers (and Sigs and CZs, etc.) have longer, stiffer DA triggers than Glocks.
The chance of an AD while reholstering a cocked and locked 1911 is very close to zero. I know I am not comfortable with a Glock, but I'm very comfortable with a 1911.
As has been mentioned, more likely is a finger on the trigger of a Glock while reholstering. The 1911 is safer since the safety will very likely be engaged at that point.
A 1911 requires ALL to be present before it will fire: cocked, safety
off, hand on the grip, AND the trigger to be pulled. All the Glock requires is for the trigger to be pulled.
Chances for a 1911 to spontenously fire on it's own sitting on the kitchen table? Infinitesimal unless it is hit by a meteor coming through the ceiling, and then still pretty low!
Of course, if you want, we can point you to a youtube video that shows "only a professional like me can safely handle a Glock 40"....followed by a loud boom in a classroom of children!