Like VTL was saying, I have alway been a Power fan. They grip great and when they break loose they hop ever so slightly to give you warning. I did recently get the Diablos, and really like them alot. While the Powers are a great tire, I could wear out a set in about six weeks. Also, while the Powers give very predictably, their threshold of give seem lower than that of the the Diablos. The Diablos hold better than the PP's IMO, and when they give it is very smooth and forgiving. Also I have enough miles on the Diablos that if they were PP's they would be 3/4's wore. The Diablos are 3/4 new still. Either is a great tire, and my suggestion is to try them both and see what you like better.