You can’t have an all time favourite until you’re on your death bed. My current favourite tune is St Jame infirmary - live in Sydney by Arlo Guthrie. While this is one of many covers, I feel Arlo does it justice like no other.
there can't be a single favourite of all time, that's not how music works
trends evolve, the audience evolves, people mature and grow old, what meant the world to you yesterday might be insignificant compare to the troubles you face today
there are songs for all of that for every person and its very much personal
sure, they have better tracks. But I consider this the well rounded package that won't scare off new listeners (right?) which is why it's my favorite although it isn't really. It's my go-to track right now to show off my audiophile system. No pun intended as Right now might be a close second. We should have a thread where audiophiles share the snippets of the songs they use to showcase their systems