Me too, kind of a hard to name a favorite though...
I probably would put “No Quarter” as my favorite.
There’s no favorite with Led Zeppelin IMHO they will always be a favorite band especially since they sang about one of my favorite Writers J.R.R. Tolkien ......
Plant was influenced by J. R. R. Tolkien inspiring lyrics in some early Led Zeppelin songs. “The Battle of Evermore”, “Misty Mountain Hop”, “Stairway to Heaven”, “No Quarter”, “Ramble On” and “Over the Hills and Far Away” contain references to Tolkien’s Lord of the Rings and Hobbit.