Right before making my tire decision (while at the tire store), I took a hard look at the Maxxis Buckshot Mudders, Interco Reptiles, and Big Horns. All are great tires (I think), with slight advantages going to each of them in different areas. The Big Horns seems softer, which led me to think they'd wear faster on hard pack, and possibly be more susceptible to a puncture. The Buckshots weighted about 2lbs per tire less than the Reptiles (both 27" for 14" wheels), that along with being a light truck tire moved me in that direction.
I'm ANXIOUS for some snow now, so I can give the new set up a good testing! *The PXT's that came on my machine actually handled snow pretty well I thought (in straight lines), but anything on a side hill or off camber and they'd slide.