Just to throw something else into the mix, have you considered General Grabber AT2's? I had a set on my WJ for 60k miles on Maine roads (read: crap pavement and lots of potholes), and I loved them. A lot of people choose the Generals over BFG's due to the huge difference in price, but IMHO, the Generals are better in snow/ice and have the same road manners. Food for thought.
If you are set on BFG's, the 285's are obviously taller, 1" to be exact, at 32.8", and have about 1/2" wider footprint. They also have a bigger price tag (about $50 more per tire). You'll hardly be able to tell the difference, so my advice is to save yourself the $200, get the 265's now and put that $ toward a set of 35's in 4 years!
Tyler R. - Ansonia, CT
Silver '12 JKRU
6-speed, soft top, 2.5" TF Lift, 35" Treadwright Guard Dogs, Smittybilt SRC front bumper, Superwinch TS9500 winch, M.O.R.E. oil pan/trans skid, Skid Row exhaust loop skid, Dominion evap relocation,*Smittybilt Oversized Tiire Carrier and Cibie headlights.