Haven't tried:

11 speed ( heck I never use all 10 on the bike that has them )
Ti, though I'm in the market !
650b - don't care as long as my wheels are round
Suntour - life beyond Campy ? I don't think so...
French or Japanese bikes.....St. Ghisallo forbid !
In ref to above- my family is from Italy. According to them, the sun rises and sets on Italian bicycle makers, and to try anything else would get me disowned !

Cheers,

Joe