Well, I can't help you in comparing, but in 99 I saw a regular 2500 Silverado and had to have it. So I only got the 3 door. It has the 6.0 and a 373. I have had none of the problems anyone talked about woth the 6.0. I only pull a Baja 272 which is mid 4,000 lbs plus the trailer, but it pulls it like it's not even there. It rolls along the tollway with the boat very nicely at 90. I can even find you a very nice Illinois State Trooper to verify the speed for ya . Fuel economy is eh,,,,, I get 16 with no boat on the tollway 10-12 with the boat on the tollway, and right around 10 running around town. Not good,,, not bad. I like the ride unloaded and loaded. Hope that helps. Yea,,, and as far as the 1500 HD,,, can anyone explain the purpose of that !!!???