I think they'd have to stick with The Chain because it's one that all audiences (both general/hardcore) know pretty well. Plus it's one that everyone sings, so everybody gets the stage time right off the bat. I don't see them ever changing it. BUT that's doesn't mean I can't throw out my own suggestions!
- "Eyes of the World" or "Second Hand News" or a ramped up "Blue Letter"
- I think "Don't Let Me Down Again" would work great, at least for the audience members that know the song.
- "World Turning" -- kinda the same build up to "Chain" with Mick on drums them guitar comes in, picks up. I think that'd get the crowd going quick. But minus the drum/Mick solo. Too much too soon.
Throw that in later on to a different song if they want to include it.