I don't think there was that much quality in either, though Special at least has some decent Oscar moments. But I have something against a bare Sesame Street devoid of most of the main characters... or worse... devoid of more than 2 Muppets! Even in the show, I'm constantly depressed when there's like 3 people there and no one's running around in the back or poking out of a window. With Elmo's Countdown, you get more of the characters that Sesame Street is famous for. I agree with the Toughpigs article. If they didn't need to focus on as many celebrities and as many song rights to Broadway musical numbers, we could have had Ernie and Bert or something. I know Oscar and Big Bird are amazing treasures that are synonymous with Sesame Street, but Ernie and Bert predate both of them. Could have at least had them wave in a window. Plus, I think for what you get, a celebrity filled song fest, Elmo's Countdown manages to do a slightly better job, at the very least, for managing to put actual Christmas songs in it.
Still, I find them both crap to the far superior Christmas Eve on Sesame Street and even Elmo saves Christmas (perhaps one of the last times Kermit was on Sesame Street. so there's no excuse for anyone to hate that one).