1: Baby Come on Home - Coda (1993 complete studioes recording version)
This album gets very little credit - but the 1993 version of this album added in 4 extra songs to this album, one of which is truly a classic, but never really gets any love. Robert Plant at his emotional raw best.
2: Tea for One - Presence
Another album that is often ignored by fans, Presence, has a great hidden gem in 'Tea for One'. Jimmy Page just oozes bluesy passion with his masterwork that dominates this song. Dealing with the band's homesickness, this was made shortly before Bonham's death and so sadly this song was never played live.
3: Thankyou (live) - Live at BBC
Already a great song, this live version is perhaps the best version of this song. What makes it so great in particular is an excellent guitar solo by Jimmy in the middle of it. Really changes the song up - and some might say should have been in the original version.
4: I'm Gonna Crawl - In Through the Outdoor
This song is so sexy and powerful. You can really sense Robert Plant's emotion behind this - John Bonham proclaims its his best performance ever. Play this to any woman, and she will be putty in your hands. This song also was never played live by Led Zeppelin.
5: The Ocean - Houses of the Holy
This song is probably my personal favorite non-mainstream Led Zeppelin song, thats also on my favorite album. This song just plain rocks. And the 'do-wop' style bridge in this song is probably one of the best bridges in any song ever (John Paul Jones and John Bonham sing too - they only time on any zep album). Period. Go listen and marvel at the musical genius behind this song.