I get a pretty heavy Alpha vibe from not only the characters but also the show in general. It's all about characters trying to weave their way through sticky social situations, laughing & joking, detailed recounting of personal stories, theorizing about people & life, etc. Alpha vibes all over the place. Just think about their coffee shop meetups.
I also think the characters are somewhat correspondent to the alpha types:
Jerry - SEI
Elaine - ESE
George - LII (extremely neurotic)
Kramer - ILE
Jerry and Elaine are the more 'normal' ones on the show, while George and Kramer are extremely exaggerated stereotypes used for comedic effect. No LII is actually as neurotic as George, and no ILE is as eccentric as Kramer, but they're still fantastic characters.
I sure as hell can't see any of the characters as -valuing.
What do you guys think?