Good topic. Mine is backhand. It's the most "Effective", not because it's better than forehand, but most good players go to my backhand, and it's effective as I can drive it anywhere I want, down the line, cross-court, lob. I got it because, and nothing of anyting taught me, but I learned to attack my weakness, so it's become a great weapon, deceptive also, someone drives a monster shot to my backhand they relax just a sec, then it's gone. So for me backhand, what about you and why?