We did once do a Worst Song Survivor years ago, which was basically the exact reverse of Survivor v1 - the whole bloody thing! Ran for ages. Schloop would've had a fit. If memory serves correctly, J. Swallow and Viva Davidoff contested the final, with Viva Davidoff winning.
At the end of this tournament, I'll see if it's possible to organise data in a coherent enough manner to have, say, rounds for the bottom songs of each decade feeding a "final" and we can give out a wooden spoon to some poor song.