I went through the same dilema with mine - I really wanted it to handle all the weight (around 6, 000lbs), but not be sky high.
I started with an AEV 2.5", but they warned me it wasn't designed for the weight, and they were right.
Now I run the AEV 3.5" and it's good, but the weight still is too much.
I would love to run their high capacity lift, but it only comes in 4.5", and I have no interest in going that big - I run 33s and I'll never go up to 35s for a list of reasons longer than my arm.
So that leaves me thinking airbags might be a good solution for what I want and need - not too high, but ability to carry the load.
An overlanding German friend of mine that spent a decade all over north Africa in the 80s ran airbags in his land cruiser, and said they didn't start showing signs of "wearing out" until he'd used them extensively for almost 10 years. So they seem plenty durable enough.
-Dan