In addition to those already listed, I thought Josh Groban was terrific in The Great Comet. And Javier Munoz and Brandon Victor Dixon from the second cast of Hamilton; Dixon gets bonus points for prompting a national conversation.
IMO, these are a few of the most incredible performances, that (surprisingly) have not been mentioned:
Annaleigh Ashford in SITPWG (a breathtaking tear inducing portrayal)
Lucas Steele in Great Comet (unbelievably danced and tremendously sung)
Joel Perez Sweet Charity (he's in superb voice; it's actually 4 or 5 performances (roles), Joel and...
Emily Padgett Sweet Charity ...really shatter the "supporting actor mold. Emily dances and sings with such passion, totally confident in the role).
Phylicia Rashad in SITPWG
Jane Krakowski in She Loves Me (Jane can do no wrong; she's ready for a show with her name above the title, flips, splits, and in every dance move, you never hear all the movement come through in her tremendous voice)
I am so happy 'Kings of War' is mentioned twice....I saw it a year ago overhere in Amsterdam and I am still impressed.
I was in New York in april this year, saw a few shows but due to my jet lag I wasn't really there, so to speak. I was all ok on my last night though, so Christian Borle as Shakespeare was THE performance for me on that trip