z400 or 400ex has to be up there. The reverse is nice for tight trail riding and playing in the mud. I think my 250X is just perfect for most riding because it is small, light and has all the power I need and I'm 6'2" 160 pounds.
The new kfx700 is the best over all sport quad right know.
Because it is a auto, you can wheely for ever. And you dont have to weary about shifting at all. Like going up hills. You are all ways in the rigth gear. Plus it has the most ground clearance of all sport quads.
And the last thind you have plenty of power for anything you come across.
NO the 300ex wouldn't have more ground clearence if you would put the same tires on as the 700. The reason why the 700 has the most ground clearence is because is's shaft driven and most other sport quads are chain driven.