Hands down, the Demarini Phenix!!! When I swung this bat, my bat speed increased by 8-10 MPH over the Rockettech. When you pick it up, it feels about three ounces lighter than it actually is. The weight distribution is perfect, and the double wall technology is accented by another layer of material inbetween. It is really an incredible bat.
The new Blue, Red, and Yellow Rockettech is the exact same bat as the silver and red one. If you look at the bats side by side by side, you will noticece that they have the same patent numbers, except for one that increases by one, that is the color patent. So, if you like the new Rockettech, save some money and buy the old silver and red one.
The best place to buy equipment is
www.betterbaseball.com. I have been to their headquarters here in Atlanta, and it is an incredible sight to see.