Just for the Madmunk, I offer this lists from the Musicplayer forums as the most overplayed bar band covers of all time. These 17 songs, Tedster's Set List of Doom, could be used for good or evil. Choose wisely!
I'm a little queasy just thinking about it. All I have to add to that are "Red House" or "Hey Joe" by Hendrix (popular with the guitar players for obvious reasons). I'm surprised there are so few Stones tunes that are overplayed (by cover bands, not by radio), but I'm guessing it has something to do with Keith Richards' unconventional tunings.
It will be interesting to see what songs from my generation burn their way onto a similar list.