This is a YFZ forum so of course you are going to have people say YFZ. But then again even on exriders most people would probably tell you to go for the YFZ, its just that darn good. And another thing, If you were going to get an EX why not have it 440 instead of 426.
This question is a no-brainer of cource the yfz...... I smoked a 426EX with snow tires in the snow without trying ....... Plus y would u spend money on parts to make it descently fast when u can get a stock YFZ and smoke it anyway? :search