I don't think you can go wrong with any of the major MT producers. I think the 4-Wheel Parts buy-3-get-1-free sale has ended on ProComps, but I could be wrong. The only negative thing I have heard about ProComp MTs is weak sidewalls,,,but then again I've heard this about every single MT out there at one time or another. It's a subject of great controversy and everyone has an asshole,,,oops,,I mean an opinion.
In addition to the PC and the BFG, look into the TrXus MT by Interco. I recently picked up a set in 34/12.50/16. IMO, the tread pattern is superior to the other radia MTs out there. It also has more siping than the pro-comp, which will help on wet or icey roads. While not the best pure rock-crawling tire, it's an excellent all-around trail tire. I am a huge fan of the GY MT/R, but only for specific terrain. It's not an MT (MT/R stands for "Maximum Traction/Reinforced,,,,not Mud Terrain) so it won't perform the way you want if you see a lot of mud,,,or wet rocks. On dry rock or slickrock, however, they are tough to beat.
Another option, if this is not your daily driver, is a bias-ply tire. The Interco LTB is an outstanding value and comes in LR-friendly sizes. Just know that the bias plies will wear much quicker than radials, especially under a heavy vehicle like a Rover.