Personally I love lifted truck,my previous was a f-250 with 8" lift and 40"tires,it was fun but I would never had towed my trailer with it.That being said I have a Chevy 2500 with the Duramax, they do sit to low in the front to begin with,mostly to try to make it ride better and keep fuel mileage and wind resistance low I would guess.But I did a set of aftermarket torsion keys and leveled the truck out and was able to fit 33" tires with no issues.The price of lift kits for Chevys is ridiculous,especially with torsion bar front end. My opinion go with a leveling kit and get some 22.5 rims and truck tires and you'll be happy.if I had a dually I would definitely go that route.By whatever you decide is up to you,just make sure if you do high lift your trailer clears the rails or you will be lifting that also,Good luck!
06 2500 Duramax. Air lift 5000 air bags,Equalizer WDH, EFI live,fass fuel system,4" straight pipe
2015 Jayco Eagle Premier 314BHDS
IBEW local 94 Electrical Worker