Here are my opinions, but
whiteweazel21 would disagree with me:
I prefer Cherry Blues for SC2. The clicking sound helps me concentrate on the game, and keeps me focused throughout. If you like riding the actuation point, linear switches are better for that. (Cherry Reds or Cherry Blacks) Because my APM is pretty high, I prefer a lighter switch so my fingers don't get as fatigued during a match.
For this reason, the Cherry Reds appear to be the most ideal switch for SC2. You'll find that many people dislike Cherry Blacks for RTS games because they take a lot more force to press. However, for FPS, it is the majority preferred switch.
For Realforce/Topre boards, I would agree in my opinion, that it is not an ideal gaming keyboard for the majority of the population. (Especially the variable weighted RF's) Due to the positioning of your fingers while gaming (WASD, QWERTY, number row), the lighter keys on the variable weighted keyboard tend to get tapped a lot on accident. This is because the keys are meant for your pinky or 4th finger. The 2nd reason being that the surface area of topre keycaps appear to be smaller than Filcos/Das/Rosewill and the like. This makes it hard to press the keys in the exact same spot that you're used to.