I'd like to mention two versions of Mike's that are memorable for me.

First, with regard to a 2 jam version, 4/16/92 at the Anaconda in Isla Vista, CA. This got me interested in Phish, as the second jam gets symmetrically sideways and awesome.

And second, with regard to a one jam version, check out the opening Mike's Song from Lemonwheel. Seldom mentioned, but this version is absolutely majestic, and achieves a towering peak. That Mike's-> Simple may have been the musical highlight of the entire festival.