JaredYJ-- I had a set of 35" Dunlop MTs and I loved them. Lasting forever on a Wrangler, I ran them for almost a year and the current owner is on his second year with them. There wasn't even a comparison between them and the swampers offroad though. I love the old bias-ply TSL. Nothing rides like them, nothing sounds like them, and nothing touches them in all around offroading.
Between the BFG MT and the MTR, I'd take the BFG and run. The MTR sucks in the mud. It floats on the sand okay, but it doesn't bite well enough for quick acceleration. I've also heard the MTR wears out quickly with street use. However, I would assume the MTR would blow the BFG away on dry rocks. Bottom line as far as I'm concerned, the BFG MT has built it's reputation on a long history of being a quality tire, the MTR reputation is based on magazine ads. I must admit, I've never owned any MTRs though, so my opinions of them are based on brief observations of other vehicles.