I'm not a huge fan of Elvis, but I do enjoy some of the stuff from time to time. I'd have to have a short 'One Night Only' show.
Main Set
Also Sprach Zarathustra / Heartbreak Hotel
Love Me Tender
Hard Headed Woman
(Now And Then There's) A Fool Such As I
Return To Sender
Crying In The Chapel
Are You Lonesome Tonight?
Long Tall Sally
Whole Lotta Shakin' Goin' On
Your Mama Don't Dance
Flip Flop and Fly
Jailhouse Rock
Hound Dog
Stand By Me
Suspicious Minds
You'll Never Walk Alone / Can't Help Falling In Love
And I Love You So
It really depends on the era. Old stuff didn't sound that good on his latter days and vice versa.
Anyway, some of my favorites are: Hurt,
Hound Dog,
Jailhouse Rock,
She Is Not You,
Big Hunk Of Love,
Burning Love,
Fever,
Teddy Bear,
Don't Be Cruel,
Heartbreak Hotel,
My Baby Left Me.