I don't know if I could ever title any of my musical interests into the "best song ever".. I feel like I'm ripping credit from other songs as soon as I start narrowing things down.
But, today a song came to mind:
If you haven't experience Battles, please do :) They accommodate to many musical interests, if you don't like the song I've suggested, try another of theirs, it could be a completely different experience.
Warning: This music is intended for only the most deranged individuals.
The drums give me chills, his crash sits nearly 5ft high...haha
And Pollyanna, thanks for the Coltrane link, that was out of this World!