as the title says im having hard time deciding which one to put on my 850 xp. im goin with skinnys all around on stock xp front rims. i plow snow ride in the woods quite a bit and there are usually mud holes so of course a little mud. im looking at 28" zillas and htr and prob 27 spartacus. i used to have zillas on my renegade so i know how nice they are but never had the others so i dont know how they compare. any advice would be great!