Framelocks are my favorite lock by far. The PM2's compression lock is fun. My framelocks do NOT have lock-stick. If they do, they get sold right away.
I gave up on #2 pencil lead and Blue Perma-markers. My Jim Burke framelocks never stick; my Military models work great with the lockbar extension.
Linerlocks can be a pain, and many folks end up grinding away extra G10 in order to be able to release the blade.
Backlocks and axislocks may be strong, but I find them to be very slow.
Did you just say you find axis locks slow? have you ever seen or used an axis lock? they can be deployed and retracted faster than an Automatic knife. EASILY twice the speed of any frame or liner lock - and your fingers dont need to be anywhere near the blade. You might want to do a bit of research or real world testing there.