Keaton is the only actor who legitimately made you scared when he smile while in the suit.
It just seemed like all of a sudden after his casting message boards were flooded with his praises where there had been none before. It seemed hardcore DC fans were just so desperate for a Batman/Superman film they were willing to take whoever.
It never seemed that way to me. In fact, from everything I read at the time there was masses of people unhappy with the casting, even after promotional shots of him in the suit were released. I think the praise came
after people had actually seen the movie. That's when my opinion changed. Beforehand, as I said, I was worried about him playing Bruce Wayne (as I thought he would be good in the suit).
I just want a good Superman film.
You are going to have a long wait. Cavill is out and DC have announced plans for a Supergirl movie and a Superpets movie but no Superman. They want to explore other characters on their roster. But I suspect it's because they are struggling to come out a story that will translate well to the screen as the character is so over-powered and has no flaws.