Axis, Compression (possibly my favorite), CBBL, are my favorites that I've used. My Manix has a brutally strong and reliable mid lock, and the Military has a liner lock as strong as most frame locks (and the Gayle Bradley golfer probably has a liner lock stronger than 99% of frame locks). I carry multiple knives and use them with either hand, so I generally prefer the Comp, Axis, CBBL and mid lock for use with either hand. I don't like liner locks as much the others, though I must say I'm loving the liner lock on the Gayle Bradley due to it being as smooth as any knife I owns while being brutally strong (in my favorite steel too). Basically I do have my preferences with lock types but if the knife is well engineered and I like it I won't let the lock style stop me from getting it if I like the other attributes (like the Millie and Bradley).
Mike