See, Waiting for Guffman was my favorite movie out of all of them (besides Spinal Tap, natch). I felt like it was Eugene Levy's best performance (ever since then, he's been playing a variation on Jim's Dad in every movie). I dunno, it just clicked with me more than Best in Show or Mighty Wind.
While we're on the subject of mockumentaries, I just got this in the mail today....
It's about a bunch of self-righteous Hollywood types (James Gunn, Jenna Fischer, Jason Segel, Linda Cardellini) who craft a charity program by giving lollipops out to homeless people. Most of the reviews I've read actually compare it to Guest & Co.'s films, so I'm interested in seeing it.