I actually quite enjoyed the pans labyrinth commentary.  It was more about the choices made in crafting the film as apposed to, it was cold that day and we had to tape down her nipples type of commentary

Correction time:  Richard Corliss and Richard Shickel are both movie reviewers for Time Magazine, but Shickel is the Eastwood biographer and Unforgiven commenter, not Corliss.

Also, I tried and failed (twice) to say antidote, rather than anecdote.

Sigh.  Middle age ain't for sissies, kids.  Do not try it at home.

This was a fun listen. I also had a big commentary phase back when I first got into DVD. It went away after a couple years, but it's actually starting to come back.

Thought I'd chime in with my favorite commentary, which is for Kiss Kiss Bang Bang. It's Robert Downey Jr., Val Kilmer, and Shane Black, and it's hysterical. I had no idea Val Kilmer was so effortlessly funny. On top of that, you also get Shane Black being honest and at times even critical of certain aspects of the film. I tend to follow any viewing of Kiss Kiss Bang Bang immediately with the commentary.

@Fido - I believe it's on both the DVD and Blu-ray. I remember listening to it when I rented the DVD. Last time I checked, the BD was available on Amazon for $6 or something crazy cheap like that!

I've probably heard about 150-odd commentaries:
The best: All of David Fincher's, Ridley Scott's (e.g. Gladiator, Alien), James Cameron's movies (Aliens, Titanic, T2), and Peter Jackson on LOTR and King Kong (2005).
Professor Christopher Frayling on the Sergio Leone 'Man with no Name' trilogy, and Frankenstein 1933 are VERY informative in putting the films in a greater context with amazing amounts of behind-the-scenes details.

Not so much a fan of cast commentaries as most actors just relate random production anecdotes (e.g. 'Woody Allen fell asleep so we kept on shooting')

Riff Trax - I've yet to laugh at anything they've done. Maybe raised half-a-lame chuckle once during '300'.

I must have listened to hundreds of commentaries that aren't DiF. Among my favourite are Stephen Prince's commentaries for various Akira Kurosawa films, and Bey Logan's commentaries for various Hong Kong movies under the UK 'Hong Kong Legends' label (the Jackie Chan and Korean movies especially). Both are meticulously planned and extremely informative.

I second the recommendation of Ridley Scott's tracks too.

The commentary is on the UK Blu Ray for Kiss Kiss Bang Bang. I used to have it and have listened to it 

Yeah, I have the Serenity Blu Ray, the cast comm is a good one

I don't have a big tv, either, just a 19" one for the time being, the picture quality is still awesome. I can't afford a bigger one right now

Ha! I liked your post for making me smile