I'd say Comet and Bandstand.
I saw Bandstand at Paper Mill last year and personally, I absolutely adored it. It was one of my favorite thing I saw that year. I really enjoyed Dear Evan Hansen as well, but it just wasn't a show I feel in love with.
Great Comet I'm just really excited about from things I've heard and read about it and because I've always loved Josh Groban's voice so much.
Looking forward to Amelie simply because I like the idea of that movie being turned into a musical, seems a good fit. But I know nothing about it, so I can't really recommend or not.
One other thought, I don't know when your next trip might be. By the looks of it, Great Comet might run for a while, so you could postpone that. Then again, I highly doubt Josh Groban will stay much longer than next summer, so if he's a factor for you, you should see it now.