Haven't yet seen the i-e show yet but I will say Elevation Boston.
Vertigo Chicago turns me off because of the poor audio-video editing during Zoo Station and Elevation. Milan was pretty good - would have been better if it was a longer show as for the Rose Bowl - hmmmm....
Slane is excellent and I'll put that one next to Boston.
Slane blows all of them off. Period. Every one of them has something special, including memories, memorable shots, incredible (and forgettable) performances... But Slane is the jewel in the crown.
Slane is definitely the most unique because it's a U2 gig played in a festival setting. Boston and Chicago and even Milan are known for great shots of the band, but nothing tops Slane regarding shots of the crowd.
Don't think this thread needs another voice in the choir, but yeah, Slane. It happens to be my favourite U2 concert film of all time; reducing the competition wasn't even necessary.
Not sure about that... Sydney and Red Rocks are tough competitors to Slane!
But yeah, from 1993 on it's just Slane all the way, hands down, no question