Best moment for me would be when her and Kramer are trying to get the medical charts back...
Kramer: your last name is Bennet right?
Elaine: what? It's Benes...you jackass
and who could forget the see through shirt in the one where Lloyd Braun sells gum.
Whenever I'm shaving I hear Elaine in my head saying "you going to do something about those sideburns"---like in the spongeworthy episode.