you will be amazed at the difference these tires and wheels will make. The ride and steering response is fantastic compared to the stockers. I use a kenda front max with the same basic tread pattern. They work well in any type of terrain. Only problem now, your gonna want to upgrade the rear as well.
A 22x7x10 is a good rear size to compliment the front. The 22's will give you better top end without loosing torque. I use the the Kenda XRC sport on the rear. The V pattern knobbys are bi directional. run them in one direction for soft/loose surfaces, V pointed forwards. or reverse them for harder terrain with a smoother ride. Orientate the tires on the wheels so all you have to do is swap sides on the rear to change pattern direction.