I've had both - one ton Chevy Siverado dually with 6.5 turbo diesel and 3/4 ton Chevy Silverado 6.0 (gas). MUCH prefer the 3/4 ton. Using a dual-axle trailer, I can even more of a load. Less maintenance and equipment costs (ie: 4 new tires vs 6), fuel mileage under load is a little less with gas but the cost is less to start with. I was plowing snow when I got the 3/4 ton and expected it wouldn't push as big a load but I was surprised. Granted, the 3/4 ton was brand new when I got it (the one ton was five years old).