The two shows above are indeed excellent and certainly deserving and worthy of being pointed out. I have been to many concerts over the years and have seen some really great performances. It boils down I believe to personal preference.
Elton John, The Moody Blues, Yes, Willie Nelson, Gordon Lightfoot, Emerson Lake & Palmer, Pink Floyd, REO Speedwagon, Styx, Foreigner, Journey, Ted Nugent, Aerosmith, Alice Cooper, and many others were all great performances.
I however lean towards Elton John and The Moody Blues because of their use of full orchestras incorporated into their music and their pure unbelievable talents. I have seen both of them 3 times and all 3 times they were absolutely fantastic...
Music of yesteryears certainly outdo music of today; there are some talented musicians but none can hold a candle to some of the greats. I'm sure those much younger than I would beg to disagree.