but the ultimate would be a raptor these are by far the best and fastest 4wheelers produced by yamaha or anybody
dirtrider did a test and the predator tops out 1mph faster than the raptor at 74mph. the banshee however is believed to be a little faster than the predator.
killer,
look into the scramblers they have 4wheel drive but also can get up and move when you want them to. if you dont mind shifting you might look at a 400ex me and a friend ride with one in the woods all the time. just have to use his dads sportsman to make the trails but once they are made you can rip through on the ex.