A personal favourite is another of Elaine's boyfriends. This was the one with the perfect face who fell off the mountain when he went climbing with George and Kramer (Was it in The Square?)
"What d'yoo forget about me, Babe?"
It's also probably my favoutite George episode because he is besotted by this guy - I love the scene when they are in the coffee shop and George copies the guy by turning his Baseball cap the other way round