I'm in the minority that really liked Batman vs. Superman. Especially since it came out at the same time as Civil War the contrast in how everything was handled is really evident. The Avengers, in being concerned about heroes and their accountability, seeks to regulate and make a political argument out of things, simply trying to shift responsibility and improve public image within a framework that currently exists. Batman vs Superman on the other hand approaches that same question from a more principled, philosophical angle.
Might there be some part of Superman, fighting his own battle with General Zod, who cares little in comparison about collateral damage against another race? What about this situation can be trusted in the long term when you have heroes like Harvey Dent whose hearts have changed unexpectedly? There's the obvious problem of dealing with villains like Superman if he's not around, but more importantly, his presence as a godlike entity clearly changes the dynamic no matter what else exists out there. Earth's solution in opening up a dialogue, inviting him to a hearing and possibly negotiating with him about conduct in the future, rung far more true to me than the audacity of SHEILD in slapping red tape all over the place. The final spark in seeing that even more meta humans are crawling around in the woodwork, just waiting to make their mark, only hastens the need for definitive cultural reform.
Lex makes a compelling villain in manipulating public opinion at every turn and setting up pieces behind pieces in his war. The final hurdle, Doomsday, is so fucking well executed in presenting an unstoppable threat that brings out and thematically and emotionally relevant action scene. In these Superman movies the director has pulled a large amount of clear inspiration (can't remember where but he confirmed this somewhere) from Birdy the Mighty: Decode (really great anime, as an aside). In particular what you're looking at is shit like this:
You have powerful, durable, lightweight characters closing large gaps and forcing each other through tons of walls and structures, really dynamic camera angles and moving backgrounds adding to the complexity of the scene, and raw emotion in the characterization of each action that's very thematically relevant. Wonder Woman leaping across great distances only to hack away before getting flung twice as far and bodied, rotating the camera to see Batman and Superman stalling for time before meeting the same fate really gave me the sense that it was all they could do to contain it. Because of this, you really get sold when Wonder Woman's barely holding on with the lasso even after the kryptonite bomb, and Superman still has to go in there with the spear and sacrifice himself. (I'll admit this death is later lessened by the near certainty that Superman won't be dead for long, but that doesn't detract from the moment.)
I'm looking forward to how this resolves into the Justice League proper, and Wonder Woman was more of what I'm looking for (origin stories being kind of tiresome at this point aside) as far as action and characterization. Do we really need to have a movie for each of the other guys though? We've already got Flash in the Arrowverse and we didn't feel the need to reboot Batman again after the Dark Knight trilogy and every other fucking time he's shown up.