Rumor has it GM is tapped out on horsepower for the current Duramax block. Ford has hinted that they are not even close to their limit on power. I think that Ford will stay on top of the hp/tq pile for awhile. With that said, they all have great trucks now. I, too, had to decide if I wanted to get a new Ford after I had an unusual failure in my 6.0 powered truck. In the end, I went with the new 2011 Ford. So far, I could not be happier. The new engine has been stone reliable, makes great power, is good on fuel and comes in a Ford truck. There is a reason Ford sells 2 out of 3 Super Duty class trucks.