I don't want air bags. They don't work well in this climate. Compressors breaking etc... A guy I know wants out of his Ram limited because every time it gets cold here his air suspension fails and it costs him a g-not in his shop. I had a Caddy with air suspension. It used to fail and the bags would get stuck inflated so it looked like a 70's hot rod. I see numerous Envoy's, Trailblazers, land rovers, etc.... draggin their butts due to failed air suspension systems. K.I.S.S. Keep it simple stupid.....
I see lots of 1500 Ram's squatting while towing appropriate length trailers. (Maybe overweight? can tell)
The Cherokee, Explorer and Suburban I had all had coils and I towed with them. I know you can tow with coils. I just prefer not to if given the choice.
I find this truck with leafs seems to handle weight better.
Again, personal preference. If I can choose a truck with leafs, that's the way I'll go.