Best: Not the best, but this is an example of the best b/c I listened to this song today and it reminded me of the first time... El-P's Request Denied off of Cancer 4 Cure, in a buddy's car with a brand new system and loud as hell. When the beat drops out the first time, I think I muttered "holy shit" and had a music blackout.

Worst: Eminem's Encore with a friend, and the horror each of us had in our faces when we realized that the album sucked and was nothing like Slim Shady LP, Marshall Mathers LP, and The Eminem Show (and, for that matter, the 8 Mile soundtrack).