From the Marvel thread:
DKR doesn't work with an outcast superman without batman being the fascist stooge. Even if they try to play him up as the rebel, he's still standing in for government authority because of what he'd hold supes to account for in terms of metropolis.
It's like doing a kingdom come version with this MOS supes. It doesn't work.
I'd like to continue this in the DC thread. I kind of see your point. But MoS Supes wasn't really Supes. It was Clark Kent in Kryptonian battle raiment. The Batman I hope they're going with is Batman is just an 'urban myth' used to scare criminals straight in Gotham City. Bruce Wayne sees two aliens level 1/3 of a city in a one-on-one scrap he's going to use his billions of dollars worth of Wayne-Tech to investigate. He's not necessarily standing in for the government as he is for the human race. By the time BvS kicks off Clark will probably be a lot closer to Donner's version in spirit (minus the camp). I think these characters could juxtapose and play off each other well especially if Snyder looks to the DCAU for inspiration.
While I agree with you entirely re: Batman in terms of which character I'd like to see, I don't see a way for DC to clean up Superman's image in a montage at the start, essentially. There's too much of a departure from the regular Supes. Although funny enough I actually think Donner had a relatively darker take on Superman, when you remember when those movies came out (i.e., pre crisis on infinite earths).
I see where you're coming from with MOS Supes just being Clark, except it's more of an AU Clark if he had a paranoid nutter for a father instead of Jonathan Kent.