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

Like the OP, I had a 2004 Nissan Titan until it was totaled by a drunk driver 2 years ago, then a 2012 F150 and now a 2013 F250 diesel. The F250 tows the best among that group, no surprise, but I still feel a little movement from passing 18 wheelers and large vehicles. I can also feel some movement during strong cross winds. So the 3/4 ton doesn't magically make the truck 100% stable when towing, but it's a significant step up. And more importantly, it's a more comfortable, relaxing tow.