I just mounted a set of BFG AT/KO 285's on my truck. Traded in all five of my old tires for them at the local tire shop. $500 difference out the door with lifetime balancing and rotation. I don't have to deal with either storing the LTX's or trying to sell a 17" tire. I'm REAL HAPPY with the BFG's so far (thanks TDR members for recommending them!).
Why did I go with the 285's? Garage door clearance, and handling, a taller tire generally loses a little handling. Besides, there is only a ½" width difference between the 285s and the 315s and the 285s have white lettering in the sides and the 315s do not.
On my '01 Dodge CTD I had some Goodyear 285 MTRs' and really liked them, except for the noise and lost a bit of the handling. If you want traction, the MTRs are hard to beat. The MTRs also look BY FAR look the best, but the BFGs look great also. I really liked the MTR's a lot, but settled on the BFG's after reading the posts on the tirerack.com and I expect them to last longer (unless I have the truck loading down a lot), no speedo re-cal (285s) and they are a bit quieter.
Want something that looks big, mean, and has excellent snow and mud traction with some noise and decent highway (75 mph) handling for a big gnarly tire? Look at the MTRs 305's with the white lettering! But IMHO the BFGs look pretty good too, just a notch less testosterone.
ALSO, most excellent article on tires on this TDR web site at
https://www.turbodieselregister.com/thought_provoking_discussions.htm