It's my first post here on the forum, and I definitely have some input for the person who asked the question. However, doesn't anyone else think it's odd that he/she has ONE post on this forum, and it's potentially flammable? Trolling is easy in the Glock vs. 1911 debate.
Let's assume the poster asked in earnest. I'm just optimistic enough to believe in the goodness of people.
The poster mentioned competition shooting, I believe. If you're going to shoot competition, what type? IDPA/USPSA are by far the most popular, so assuming that, you've got some choices. I've been shooting both for about 9 years now, incidentally, and I shoot between 12 and 15 thousand rounds a year, so I can attest to handgun reliability. I have both a Glock and a 2011 (Infinity variant of the 1911 in .40 S&W). Both are great guns, both are as reliable as they are different. I've personally participated in 2 "Glock vs. 1911" reliability competitions where everyone fired 1000 rounds in one day through their platform of choice. Glock won 1 year, 1911 another year. So much for science.
If you're learning how to shoot handguns, I've found the Glock is a great teaching/learning platform for fundamentals. Grip, sight alignment, taking up the slack, breaking the shot, etc. are easier to teach and learn on the Glock. Drawing a handgun from a holster and preparing to shoot on the move is a new skill for shooters new to competition - let's just say I've seen fewer ADs with Glocks. Ditto for reloads on the move.
For competition, a Glock 35 (.40 S&W) is a great choice for both sports, as you can shoot in IDPA's ESP or SSP divisions (see the rules for specifics). You can also shoot the Glock 35 in USPSA's Production, Limited 10 or Limited divisions. IDPA limits rounds in the gun to 10. In USPSA Limited, you can get a mag extension and load up 19 rounds or so. More bullets, more fun!
Having said all that, I've been shooting the Infinity for a couple of years now, and probably won't go back. Single-action triggers are certainly more palatable than the Glock safe-action trigger. The grip angle is different between the 2 platforms, too. You have to roll your wrist a bit more with the Glock to get the same sight picture. I can put 20 rounds in the Infinity's double-stack magazine for Limited. I often think of the Glock as my "learning" gun. Of course, I get whipped regularly by a lot of Glock shooters - that Sevigny kid is pretty good.
Nonetheless, I think the Infinity lets me go pretty fast.
The Glock costs about $650 retail, the Infinity around $2500. Quite a difference there, but consider that I've been shooting them both in competition for several years - that should tell you they're both fine platforms. There are too many factors involved to attempt to foist an opinion of what's "better" with respect to your choice for handguns. As it has often been said, it ain't the car, it's the driver. Good luck on making a choice.
jr