The biggest difference between BBs and a real suspension lift is BBs use spacers to achieve the desired height "look" if you will that will also allow you to run bigger tires and level the stance of your Jeep. Many people wheel rigs with BBs with no problems and at the end of the day are happy to avoid the money and expenses that come with a coil lift and more components. If you're just going for the look and wheel your jeep moderately or even more so, your going to be fine with a good BB. AVE, Teraflex, Daystar, Rock Krawler etc all make them and you'd be good to go with either a 1.5 performance leveling kit by TF or the same by another.
If you want to really lift and replace suspension components not just for the lift but for your jeep's handling then look into coil lifts by the makers mentioned above. The greatest problem with BBs is simply this, most who put them on wished they'd gone bigger and then wind up doing so. We call it an addiction but it's really a sickness only cured in short intervals by future mods.