Touchstone Pictures / Associated Press
This is obviously a subjective thing. Josh Hutcherson has been seen with numerous stars, including Vanessa Hudgens at a Lakers game (while Tom Cruise comes over to chat). That's big time. But Liam may be more of the moment: As the last ex-beau of Miley Cyrus and as brother of Chris Hemsworth, who is having his own big moment as the title character in summer's "Thor" and its "Avengers" companion later. We'll give the slightest of nods to Hemsworth for timeliness.