Originally Posted by unloved

All of the above. I had a SOG Flash that often failed to lock, and a SOG Trident that ceased to be an assisted opener after about 6 months of EDC. No more SOGs for me! Gerber uses nylon bushings in theirs, therefore I don't want one. I own a Camillus Blaze that won't open with the stud, just the flipper. I've got a 6-7 year old Kershaw Whirlwind that opens as smoothly and quickly as it did the day I bought it. Locks up just as solidly too. Not to mention the very reasonable price.

I probably should have said the best available that I have personal experience with as there are brands that I haven't tried. I did say the best in my opinion.