When I first saw your post title I immediately had Ross down towards the bottom of my list. Then you had to throw out the Unagi meme and I remembered all of the funny stuff that he used to do. I think my top would probably be Chandler. Maybe because I could relate to him more at the time. Good stuff though! I don't find myself watching the reruns as much as I used to, but I can still pick up at any point and remember what is going on. My top three sitcoms are probably Friends, The Office, and Seinfeld in no particular order.