Well for me, he looks less manly compared to Toby Maguire, but he has this same boy-next door aura that makes me wet my pants.
Plus, he made a lot of good movies already! I like him in Boy A and despite being casted with Collin Farell in The Imaginarium of Doctor Parnassus, his new boy effect got me. And in case you haven't watched the short film I'm Here, please do so.
And he is British for god's sake.
Andrew Garfield *drool*
And if he is not enough for you, Marc Webb(PUN!) is directing.
And come on, this is Spider-man, where the lead guy wakes up with sticky stuffs in his hands.