He praises and seems very proud of Zack Snyder's Superman movie. Not sure when he said this, but I think it was about Man of Steel only. I wonder what he really thinks now, and what his thoughts on BvS are..
IMO, if Nolan thinks MOS was that good, then he doesn't fully get the character. He gets Batman a lot more. I also understand that Nolan and David Goyer wrote the story in MOS, but I also understand that Snyder had a lot of input as the director with his own ideas like the way General Zod died.
In general, I feel Nolan and Snyder's vision for Superman was too gritty and somber. That was great for Batman, but Superman needs more joy, imo.
More here:
https://pbs.twimg.com/media/DrGjp3AU8AE4PH-.jpg