Worst studio song? Probably Mofo (think it's brilliant live though, when Bono's voice is on form), Miami or Playboy Mansion. Elvis Presley and America doesn't really fill me with inspiration either lol...
Best live song? New Year's Day or Streets. Think they're the pinnacle in epic stadium anthems


Worst live song? If God Will Send His Angels during one of the Las Vegas performances - Bono's voice was so off colour it was painful

On other topics that have been covered, a) I think the best lead into Streets was Running To Stand Still á la ZooTV and b) I kinda like One with Mary J. Blige lol...
*runs to find cover*
*I don't think it's very good live though, I'm afraid, don't think it has the power that the album version gives it...