Best tire for WI/ UP of MI trails

Hello everyone, purchased a new RZR 570 back in late October. Only put 50 miles on so far, but definitely know I want to upgrade the tires for sure and possibly rims also. I ride a lot of hard pack, sometimes rocky, trails in WI and the UP, but also the occasional mud hole or swampy area with my buddies. What does everyone suggest for a good tire/rim combo. I like both the ITP or STI wheels and it looks like a common offset is 4/3 which would be ok for a little more stability. I want a 26" tire, but no taller due to possible rubbing issues and no plan to do a lift. Thanks.