My suggestion is; dont get any of the established directors, including Nolan, Singer, Abrams, McG.... definitely not Spielberg or Mike Bay. Get someone who is young, hungry, respectful and not full of himself. Someone who is what Peter Jackson was before he made LOTR (what he was before LOTR was the reason he got to make them).
From the big league I would suggest Terry Gilliam. He's the only one who has balls enough to make something different. And "different" is what this franchise needs now, because it has so much mental baggage and expectations and legend attached to it. Nobody can "win" if they try another regular Superman.