You asked for it, so fire opened. I'll be the first to admit that he is NOT the best actor out there, but he's got something special.
I do wonder just how long it's been since you've seen him, based on what you're saying.
1. Constantly having vocal problems? Vocal steroids? I'd love to know how you say you "know" these things.
2. The eyes: he rarely does that anymore, at least in the context of a stage musical. He'll do it when he sings his own stuff, but he's a musician - let him do what he wants.
3. The movement: I think this is the one that really lead me to question just how long it's been since you've seen him. During his first time around with AIDA, he did just stand there and sing - he's definitely got a lot more rhythm. The second time around he really let loose and moved with the music, especially during Fortune. And Cabaret? It just wouldn't have worked if he'd just stood there. Nothing he did up there seemed remotely forced. And his movements are consistent, to a fault. He's incredibly dependable in every single performance that he gives, so much so that you can track him down to the raising of an eyebrow.
Look, I'm not trying to convert you and I'm not trying to make you change your mind. You put in your two cents, so there's mine. I've learned that especially with things in theater, if someone doesn't like something, there's just simply no changing their mind. Normally I'd probably let it go and be like "oh, well okay! You're entitled." I guess I just feel like with the show closing and all, I need to get some stuff out. I've heard enough about why people don't like Adam, and today it's bugging me. Nothing personal, but just... be gentle.
And yes, he does have a very nice butt.
A work of art is an invitation to love.