I voted for Original Quinn, since I didn't watch the series long enough to see the Merged Quinn. Once the Professor and Wade left the show, I left it soon after. BTW, in what season did the Merged Quinn appear? But the original Quinn definitely held the show together in the early seasons, since he had the most screen time in most of the episodes and he was a very-good co-leader of the original group along with the Professor. He was intelligent, resourceful, humorous at times and definitely a survivor who got the other members out of several dangerous situations. I can't think of any specifics since it's been a while since I saw the show, but I know he resisted the Kromags (spelling ?) more strongly than Wade or Rembrandt. He also knew much more about the portals than any of the other members of the team, and he was often quick to figure out what was unique about the particular alternate world in which the team was located. So in summary, Quinn was cool.