Question: What RPG have you played the most in your life?
Answer: That’s a toss-up. It’s either: Dungeons and Dragons 3.5/Pathfinder, or Advanced Dungeons & Dragons Second Edition. I think 3.5 edges it out (we played A LOT Of that for a long time), but it could be tight.
Second would be World of Darkness in it’s various offerings, and third would be Pendragon.