To the above 2 posters: Wow, hate much?
The basis of all mechanical key switches is the compression of a metal spring. Even Topre have one, although it's conical rather than helical. Different implementations allow the spring force to have more or less prominence in the slider movement. Most prominent = MX, least = Topre.
There is very little difference in the way the tactile part of Alps, Matias and MX switches function. The tactility is still a plastic "bump" with a shaped leaf spring. It's just a different shape and in a different place in the movement.
That said, I do think Clears with lighter springs are the only tactile variant of MX worth using. Browns have too small of a bump on the stem for my taste. They're tactile enough to prevent accidental presses and to give enough positive feedback when typing to improve typing accuracy for some people, though, and that's enough in some cases (if you want something as close to linear as possible, but with these features), but I wouldn't consider them properly "tactile", more like linear-ish with mild tactile feedback.
I agree on the clicky MX variants, though. Seems to be an ad hoc feature that doesn't really work for me. Clicky Alps use a completely different mechanism for the click and they are much nicer, both in sound and feeling.
So, 62g Blacks, Ghost Blacks and 62g ErgoClears are the best MX types. Pity Cherry doesn't make them like that.
If you want clicky, go Alps or buckling spring.
