My Ideal Cast at this moment would be:
Superman/Clark Kent - An Unknown, because I think that for a role as big as this one a recognizable face would be too distracting, but if the studio really wanted a name actor I could maybe spring for Josh Hartnett, or even Routh, both are about 30, the right age to play the part
Lois Lane - Keri Russell, she is a really good, beautiful actress, and is also the right age for the part
Lex Luthor - Daniel Day Lewis, lets face it DDL can pretty much do anything you throw at him, and he'd probably pull off a more serious and sinister Lex that has never truly been done, he is definitely one of the best actors around right now, but he is about 50 or so
Perry White - Hugh Laurie, ever since I first heard that he was originally cast in SR I've always thought of how great of a Perry he would of been, his work in House also convinces me he is the ideal man for the role
Jimmy Olsen - Shia Labeouf, he is a pretty darn good actor, and Jimmy is a comic relief character which Shia does well, not to mention he is once more the right age to play the role
Jonathan Kent - Kevin Costner, he has proved before that he can play this type of role, and he is just old enough now to where he could play Pa Kent
Martha Kent - I am really stumped on this role, the only person I came up with was Karen Allen, but I am not 100% sold on her for Ma Kent, but she would match Costner's age well
Jor-El - Johnny Depp, I know he has been mentioned many times before for this part, but that is because he could truly pull off this role really well, plus I like the idea of a middle-aged Jor-El in a reboot
Lara - Catherine Zeta-Jones, she is beautiful and could match Johnny's age really well
Metallo (if he was in it) - Jason Statham, he is a magnificent action movie star, and for a physical role like Metallo he'd be perfect
Brainiac (if he was in it) - Hugo Weaving, he is just about the only actor around right now who could truly pull off the part
As for the writer(s) and director, I don't want any big names personally, because I don't feel that any big name writer or director around right now is a good match for the Man of Steel. For a character like Superman you need a person, or persons, with a genuine love and understanding for the character for a good Superman film to actually make it; that is how Batman Begins succeeded, because two men with a love and understanding for the character got together and delivered a superb story. The next team behind Superman should be an unknown director and writer, and I would say do what WB did for Batman Begins and look at the independent film industry for the right talent to realize the Man of Steel, just because many of these guys have never done a big budget film before doesn't mean they can't do it. I just don't want to see big names come in and kill the franchise because they didn't truly understand the characters and were only in it for the money.
