Well, the Pro Staff 6.0 is a piece of history, but surprisely i'm going to go with the Pro Kennex Copper Ace. Most beautifully weighted racquet i've ever used in 30 years of tennis. I could volley, slice, drop shots, rip the ball cross court with a flick of the wrist. Still to this day I haven't found a weapon that gave me such touch (The racquet is over 20 years old). Sure, today it has no power, but my God, for those of you out there who have played with the 'ace' you will understand the greatness. For those of you who haven't, search everywhere you can and try it! Submit your weapon?