I don't think the Revo's are bad at all and personally I would'nt worry about a snow flake. thing , it's kind of a marketing thing. I really don't know but the BFG has a tread depth that seem's twice as deep as the Revo ( at least in my eye's)
I just don't see a big difference between the 2 tire's so far except the Revo is much better riding and handlind on road. I guess with my years of running BFG I've never had so much as even a flat. Being old school I'm not subject to change I guess. I don't have any regret's really about the Revo because they also have never let me down......but I've only logged 2500 miles so far with 3 mild off road trip's and they have functioned well in those situations with snow on the ground.
I think you just need to get what youy like and what your used to . One other thing that did sway me to the Revo was on the BFg it seem's after the wearing down the did ride pretty crappy and I did want to get away from that,hopefully with the Revo.
I did'nt nean to open a can of worms here, both are good tire's and you probably can't go wrong with either since are both proven performers.
Sorry to hi jack this thread and steel away the thunder of the new shoe's on the black 4R. BFG's look the best but like said it's all about form or function.
One last note was my friend had BFG AT on his f250 crew cab 4x4 and after the wore out he went to the Revo and he love's them, I also have been seeing alot more truck's around here with Revo's on than prev. but probably because I'm keyed into them.