Cherry MX blue are more tactile than browns. You can easily feel the "click" in the blues, but the tactile bump in the browns is very slight.
This has to do with the tactile bump on browns being higher up, plus with blues you can also feel the impact of the moving part that generates the click after being propelled upwards. Force-displacement graphs can be found via the "Switch reference" wiki.
Now the clicks - that does get annoying.
It
may, at least - less to the user himself but rather those around. If, however, the surroundings are halfway well-damped acoustically, the high-pitched click would be absorbed more easily than the racket from a BS or Alps board. There also still is a difference between boards with PCB-mounted switches like those from Cherry themselves and those with plate-mounted switches like Filcos, which tend to be more solid-feeling but noisier.
BTW, I don't have much of a problem hovering a Cherry blue around the point of actuation below the tactile point - actually this also gives me the occasional double character. Unlike with BS, the hysteresis is not an integral part of the actual switch mechanism.
In any case, there are good reasons for blues and BS leading the pack in the last switch poll.
