Oy, Matt...I don't even know where to start.
I've seen Jackman perform live. If you haven't, then you have no idea what the guy is capable of (and I don't mean YouTube clips). I have been going to Broadway shows since 1980, and I have seen a lot of so-called "A-listers" on stage. Hugh is the only one I've seen get a standing ovation during the show. And not just from theater-freaks, Wolverine fans, and crazed middle-aged women. The entire audience. I'm not even slightly exaggerating - he was that good.
Keep in mind his show did not get great reviews from critics. In fact the NY Times critic commented that Hugh's shoulders must be killing him from having to carry that show every night. But once word got out about that performance, it sold out every single night. They had to shut down rather than use the understudy when he went on vacation, and instead of recasting they actually just closed the show.
You cannot compare the raves he got on Broadway to the raves Clay Aiken got in Spamalot. Aiken had no theater background, and it was stunt casting for a show in box office trouble. And supposedly the rumor going around is that he actually hates the show.
Hugh has an extensive theater background in Australia, London, and NY. Watching him on stage, you can see how much he absolutely loves it. On top of giving this phenomenal performance, he had the opportunity to play with the audience and ad-lib and go completely off the wall every night.
If you've only seen him in the movies, you don't know the half of how talented the guy is. Again, it was like nothing I've seen on Broadway before, and I am a Broadway vet.