Glocks are ultra-reliable. They're pretty accurate, and easy to maintain. I prefer the Ruger because I like Ruger, and haven't been dissapointed by them yet. I also like the feel of a solid gun. Shooting a P90 .45 and a Glock ?? 10mm, I like the feel of the Ruger. It's more SVT Cobra than STi. If this is for fun, it all comes down to what you like: shoot some guns at a range, and pick what you enjoy.
