This is always a tough one to answer, because--like many other board members--I've seen Elvis in so many iterations:
Elvis and the Attractions
Elvis and the Attractions + the TKO Horns
Elvis solo
Elvis and the Rude Five
Elvis and Steve
Elvis and the Brodsky Quartet
Elvis and Burt Bacharach and Steve and orchestra
Elvis and the Imposters
Elvis and the Imposters + Charlie Sexton
Elvis and the Imposter + Charlie Sexton + Horns
Tough to compare them all (and tough to think about the ones I didn't see, like Allen Toussaint or the Sugarcanes). Some highlights:
Elvis and the Attractions in Cleveland August 15, 1982. My very first Elvis show. I had tickets to see the English Mugs tour with Squeeze, but sadly the show got cancelled due to a snow storm. I was heartbroken. Still, nothing beats your first Elvis show, with the Attractions firing on all cylinders and touring behind Imperial Bedroom. 35 big songs!
Elvis and the Attractions + the TKO Horns in Allentown August 3, 1983. Lots of fun, the TKO horns sounded great--a good party. Plus, Aztec Camera as the opening act.
Elvis and the Brodsky Quartet in New York City March 18, 1993. Felt like a special event, which I think it was. As Elvis was announcing they were going to play the last song, my buddy yelled out "Jacksons, Monk, and Rowe" and Elvis asked if we wanted to hear it again. The audience did! So we were treated to an extra song.
Elvis and the (reunited) Attractions in New York City August 6, 1995. It was a surprise for the Attractions to reunite at all. But then for Elvis to workshop songs before going in to record All This Useless Beauty was a delight. Plus, Opportunity!
Elvis and Steve at the Royal Albert Hall in London April 15, 1999. Favorites old and new in a swank setting. Bonus points for finishing the show with Couldn't Call It Unexpected #4 off mic. A top concert moment.
Elvis and the Imposters and the Spectacular Spinning Songbook in New York City October 21, 2011. Our beloved entertainer. Mary-Louise Parker coming out to give the wheel a spin, giving us both His Latest Flame and Town Cryer. I was disappointed the wheel didn't land on Hoover Factory.
Elvis solo in Morristown, NJ November 27, 2013. The ultimate setlist--Imagination Is a Powerful Deceiver, King of Confidence, Wave a White Flag, My New Haunt, Harpies Bizarre, etc etc. The seeds for the Gramercy run were planted here.
Elvis and the Imposters + Charlie Sexton + horns in New York City July 12, 2023. Maybe the most challenging of all the Elvis shows I've seen, but one of the best. I wrote this up in another thread, and have thought about the show a lot over the ensuing months.
OK, I guess I've seen a lot of best ever Elvis gigs.