I own several Glocks, but I believe the 17 is the best they have to offer.
Many find it on the large side for concealed carry and will opt for a smaller model, but considering the totality of possible uses(Military Service/Police Duty/Home Defense/Concealed Carry/Range/Sport), I think it's overall the best model.
"The pre-2011 gen 3 G17's are the most reliable, bomb-proof pistols Glock has made, closely followed by G19's of the same era. Assuming you change your recoil spring when needed and are using standard capacity OEM Glock mags, you should be able to shoot 10,000's of rounds without ever having a gun related malfunction." - Dr. Gary Roberts aka DocGKR