Mostly daily driving, but probably 30% off road use. OX locker in the back, auto locker in the front w/ lockout conversion front axle is what I would like. I would probably lift it up enough to clear 31's-33's but I don't know about drive shaft angels :???: so that is probably a battle for another day. My off road plans for it would be fairly mild, just trail riding. I don't have the nerve to break stuff just to breaking it, or risk a rollover.
I am not a very power hungry guy. Most of my wheelin' has been done in a 2.4 wrangler, and it has done everything I have wanted it to do, I have very rarely wished for more power, but have often been glad that I didn't have more power. When you do something stupid with very little power, you realize how bad it could have been if you had lots.
Most of my want to go 4.0 stems from the fact that the 2.5 in my MJ feels like it has alot less power that my 2.4 in my tj (and it does). I would be happy if the truck felt like my 2.4 tj with an nsg370 and 3.73 gears. Since the early 4.0's made only marginally more power than 2.4 that is in my TJ, I felt that would be a good comparison.
I have been under the impression that the aw4/5 trannys probably aren't strong enough for a locked rear end, but I would value countering opinions.