I never tire from listening to this track from the "Led Zeppelin IV" album. In fact as I blog, I am listening to four versions in a row.
I had it on an ancient "IV" CD, then digital downloads of "The Song Remains the Same" and "Mothership".
Plus an intriguing Rodrigo and Gabriel Spanish guitar cover.
The best? I would say the 10 minutes plus of the live version from TSRS.
Surely this is the best crafted track of all time?