I'd also say he's very sexy. Charismatic. a talented actor, too.
Ditto. I've only seen clips from "the Boy From Oz", but I hear that role was extremely demanding in terms of the percentage of songs performed during the play (~80% or more) and being on stage for nearly the entire performance. It also requires a lot of dance moves.
Even before "The Boy from Oz", you have to admire his range of characters that he played, from Wolverine in the X-Men series, to Van Helsing in "Van Helsing". (The movie "Van Helsing" was a mash of all of the 19th century Gothic horror stories - Frankenstein, Dorian Gray, the Invisible Man, etc - but he played the character well.
He's as versatile as Tom Cruise, as althletic, and contrary to "Tom Cruise who always plays Tom Cruise", Hugh Jackman can perform a variety of roles.