I know I'm biased and judging Affleck purely on his acting and some bad roles. I haven't seen his (directed) movies but from what I've read I can already say he's a wrong pick. JLA deserves someone who can handle the big scale. It needs someone who can balance both the drama and action.
Kevin Smith (as he's no stranger to comics and thats what I think helped with Whedon) or Scott Snyder
Imo we need a good director and good story teller first. I don't mind a comic book writer as the script writer though.
@erik_norris: my only qualm is that the nuclear blast was so large and he was in the middle of the ocean and we see him fore most of the flight, and earlier he mentioned no auto pilot. I think , to me, that he died and that Alfred saw him at peace, because he was at peace with him self in death he was.
The only reason we saw Batman in the plane for so long was to make us believe his dead. Alfred was heart broken. He thought he had failed the Waynes, failed Bruce. Then he saw him alive and all was well again.
If Bruce is dead then Fox finding out about the autopilot would be pointless. The ending wasn't an attempt at Inception nor shouldn't it be one.