Take a look at the Cooper AT3 265/70R17
. These ride great on the road but will do well when you are off road and in the winter too. My brother in law has a set on his truck and loves them. they also have a 55,000 mile warranty. (avail. in P, C and E ply ratings)
If you want to go with a more aggressive tire than that. Take a look at the Goodyear Duratrac
. These are available in a Load range C (6 ply rated) or E(10ply rating) and are considered a hybrid AT/MT. These can be studded in the winter and they will give your Jeep a Really nice, aggressive look.
As for size, the 265/70R17 would be a good size with your lift. Any larger than that and you'll likely need to make further modifications.
If we an help you more please let us know. Here's a link to the tires we have available in the 265/70R17 size. 265/70R17 Tires - Free Shipping