Same song different artist. Which ones do you love? LP

Antje Duvekot's covers of "Mercedes Benz" & "Fat -Bottom Girls" (right up there w Martykl's nomination for most unlikely cover).
+1 for Zevon's cover of "Knockin' on Heavens Door". 
How about the many covers of Leonard Cohen's "Hallelujah", Dylan's "All Along the Watchtower", "Don't Think Twice It's Alright" & "I Shall Be Released", John Prine's "Angel from Montgomery", John Fogerty's "Lodi", Cyndi Lauper's "Time After Time".
Another favorite cover of mine is Emmy Lou Harris singing Stephan Foster's "Hard Times Come Again No More".

Van Morrison's cover of Comfortably Numb
+1 to Jimi Hendrix's version of All Along The Watchtower

Bettye Lavette / Most of the time 
Cat Power / Amazing Grace
Eddie From Ohio / I know you rider
Jennifer Warnes / Bird on a wire
Dave Matthews Band / All along the watchtower
Carter USM / Another brick in the wall
Les Claypool & Chris Robinson / Battle of New Orleans 
 

There are so many great covers done over the years of Dylan songs, Leonard Cohen songs, etc. Too many to list. So, I'll give you a few less know covers that I really like.

"No Diggity" - Chet Faker's soulful version of the Blackstreet R&B/Rap hit.

"Drive All Night" - Glen Hansard's version of the Springsteen song from The River.

"Down to Zero" - Bettye Lavette's version of the Joan Armatrading song.

"Crying" - Adrian Belew's excellent acoustic version of the Roy Orbison hit.

Enjoy,

TIC
 

Drive all Night by Springsteen is such a raw, emotional, genuine song. Always speaks to me.