Mud terrains for sure. Save your stock rims/street tires for long trips. You will love the look of th MT's on black rims. It made my vehicle look so much tougher than before:

 

I was thinking MTR's. I've had BFG AT's for my last two sets of tires. I think the MTR is more of an all purpose tire than a mud tire like the BFG Mud. I'm retiring the stock wheels (selling is anyone is interested??) and scrapping the tires. Almost 50K miles on them.