? much help will 3/4 ton make for ride quality comp to 1/2?

You do need to remember, you have a 7000+ lb trailer behind a 6000 lb truck, and that trailer is a very large sail.

OP, I would be very wary of listening to some advice you get here. Comments like the above are quite... interesting. It seems a half ton shouldn't weigh less than your trailer, but once you bump up to a 3/4 or 1 ton truck its perfectly acceptable to tow a trailer that weighs twice as much (or more) than your tow vehicle.