Stones played last year after Mick's heart issue and I think he was out to prove something. It was raining for a good bit of the show and his roadies were squeegeeing the stage the majority of the time. I beleive in past years it would have been rescheduled, but it was unbelievable and I wasn't sure I would go until the last minute. Great decision to go.
I had seen them probably 15-20 years ago and they were clearly going through the motions.
Springsteen on the other hand, is consistently energetic, determined to give his fans their money's worth. I saw him the night John Lennon died and he played for 4 1/2 hours-that was the single best concert I ever saw. I was totally worn out by the end as everyone on the floor had to stand on their chairs the whole time to be able to see.
Lately, Roger Waters has also been right up there when he played Dark Side with lasers that displayed the prism that was incredible.