Hey Joel, this is an intriguing as well as unanswerable question. On a whim, ignoring the rules, let me propose one per style, for a few styles:
-- Cosmic by Gianni Safred (cosmic!),
-- Fujiyama Gymnase by Oswald d'Andrea (waltz it!),
-- Modern People by the Fred Berlipp Band (schmaltz done right!),
-- La Maliarda by Fernando Mainardi (endearing!) and
-- Guirlandes Magiques by Guy Boyer (ominous!).
So, tonight, in this very moment, if you must have just one, it's Cosmic. Tomorrow will be different...