Elaine Benes may be one of Jerry's ex-girlfriends, but she manages to stick with the gang and just be one of the boys on Seinfeld.  Elaine is intelligent and frequently has impressive jobs throughout the series.  Elaine definitely struggles finding Mr. Right and has an on-and-off again relationship with David Puddy from season six and on.

Elaine Benes Quotes

Elaine: (referring to Dr. Reston) He's like a Svenjolly.
Jerry: Svengali.
Elaine: What did I say?
Jerry: Svenjolly.
Elaine: Svenjolly? I did not say Svenjolly.
Jerry: George?
George: Svenjolly. (licking some peanut butter off his finger)
Elaine: I don't see how I could've said Svenjolly.
Jerry: Well, maybe he's got, like, a cheerful mental hold on you.

George: (singing) Master of the house, doling out the charm
(later)
Mr. Benes: (singing) Master of the house, keeper of the inn

Seinfeld Quotes

(trying to convince a reporter that he's not gay) Look, you wanna have sex right now? Do want to have sex with me right now? Let's go! C'mon, let's go baby! C'mon!

George

Elaine: (referring to Dr. Reston) He's like a Svenjolly.
Jerry: Svengali.
Elaine: What did I say?
Jerry: Svenjolly.
Elaine: Svenjolly? I did not say Svenjolly.
Jerry: George?
George: Svenjolly. (licking some peanut butter off his finger)
Elaine: I don't see how I could've said Svenjolly.
Jerry: Well, maybe he's got, like, a cheerful mental hold on you.