Ok looks like I made a slight faux pas, Adkins is indeed 5"11 and not 6"3 a which rules him out in my book as well, I want a tall superman. I was reading about him a particular site and they said he was 6"3 . . . Apologies.
I've seen Kutcher in 3 films - The Guardian, Butterfly Effect and Spread - and he was fine in all of them. I'd even go as far as to say he was pretty good in Butterfly Effect and Spread. I know he's done some corky comedies and tv shows, but I don't really understand the hate for this guys acting