Not sure I can pick just one. So here is my best drive, approach, and putt.
A 330 yard par 4 at La Cantara (San Antonio). Wind was helping, but I swung out of my feet. Hit a nice fade and rolled up on the green and stayed there.
After a drive that landed in a heavy tree area well below the fairway and greens, I hit a PW from 125 yards away, I missed all trees and got it on the green. It rolled up and hit the pin. Tap in for birdie.
Best putt, has to go...