The best song is "Blame It On the Boogie" by the Jacksons, or "Let's Spend the Night Together" by David Bowie, or "Dare to Be Stupid" by "Weird" Al, or "Dream On" by Aerosmith, or "Collide" by Jars of Clay, or, or, or. Dang! This is waaaay to hard!
Yeah, you cannot just pick one song...there are sooo many genres of music. Also many different people have their own opinions. So it would be literally impossible to pick the "best song"