These are all terrible suggestions!!
As I read "London Calling" I immediately thought of the Know Your Rights cover...that sucked! Am I the only one who thinks that?
My choices for songs that should actually work
The Beatles - Mother Natures Son (Thinking of the White Album - Everybodys got Something to Hide Except Me And My Monkey would be incredibly fun,too - maybe a one-shot performance like they did with Whip It)
CCR - Born on the Bayou
The Byrds - 5th Dimension
The Doors - Tell all the People
REM - The Flowers of Guatemala
Nick Cave & The Bad Seeds - Deanna
Bonnie Prince Billy - Just To See My Holly Home
But I have to say, that for the most part the rather obscure covers work the best! Who would have though that they actually sound good covering Timeless Melody? THATS a cover that should reappear on setlists! Baba is delicious, too! So sad I haven't seen it in concerts yet.
Tops: Baba, Timeless Melody, The Real Me, Leaving Here (!), So you want to be A RnR Star, Crazy Mary
Downs: Know Your Rights, Fortunate Son, All Along the Watchtower (!)