While I'd have preferred a more prominent jaw and a slightly smaller nose and naturally light-colored eyes on Routh, he did a good job with what he had to work with (the weird suit, the dearth of lines, the standing around to be looked at). It's more than just the face to carry the role.
At the same time, I'd love to see a "perfect" Superman on screen. As much as I love Welling in Smallville as Clark and think he's gorgeous, I have trouble with the manips of him in the suit. Just don't like the way he looks in the suit, at least not yet. The little turned-up nose could be part of it - always imagined Superman as having a stronger, more grown-up nose.
As a kid, I loved Reeve as Superman (Reeves before that, but I didn't see him on the big screen). As an adult, I find his Clark annoyingly, overly nerdy and prefer the Clark-Superman reversal that started with Dean Cain (who looks NOTHING like the comic book Superman, but he was an awesome Clark!).
The guy house-sitting across the street from us when we first moved in would have looked awesome in the suit. Big, handsome, built guy, dark wavy hair, bright blue eyes, nice voice and manner. Jaw-dropping, literally. Not an actor, though, AFAIK. No idea if he could act. To get someone who looks straight out of the comics, the movie folks should start canvassing marketing departments to see if there are any lookers there who can act... Plenty of good-looking, big guys in sales and the like (and football). Joe, if you're out there reading this, get thee to an agent!