Hands down. The most epic pop song ever written.
... Lol, I realize I leave that comment on most of her songs o.O But seriously, this is one of THE BEST. Not only amongst her songs, and amongst all the greatest pop hits.
I cry when I hear the acoustic version especualy because it means so MUTCH so gaga as it was written for her grandad when he passed away and mine also passed away when gaga wrote this song so its so special to me all gaga's songs are but this one is especialy close to my hart :)