You are going to get varied opinons, so here is one more............
Minimum 4 inch lift is wrong. With a 2 inch body lift you can run those BFG's you want using bumpstops, budget boost spacers, or anything larger then that.
Rockcrawler lifts
Affordable, ultra strong, but not recommended for your jeep that is driven about 100k per day on the street. You will be forever greasing, tightening, and maintaining parts that are more geared to the offroader then they are to the street driver.
So, whats my suggestion?
Keep it simple, and reliable.
A 2.5 OME spring kit, with OME shocks, an adjustable front trackbar (full traction makes one with a TRE frame end for 2-4 inch lifts), and call it done.
OME parts have a great reputaional, and if you decide to resell and go bigger down the road, you will get most of what you spend back.
Vinman on this forum runs larger 35's then what you are looking at with these springs, a small spacer, and a smaller body lift then you.
If you are looking to spend big dollars, and want the best ride you can get, start looking at long arms.
Whatever you do, avoid the budget 4 inch lifts. They always come back to haunt people in the end.