In BvS and future Justice League films? I know, as I said, it's a nitpick. But personally I know I'll be bothered when I see Batman, especially not as the leader, standing taller. Heck I believe even Jason Momoa towers over Henry Cavill and maybe Ben Affleck too. Ray Fisher is a tad taller than Henry or just as.
Same nitpick with Marvel films too unfortunately. For Cap I'm used to seeing say Thor or Hulk towering over him, but I hate seeing Iron Man (the armor not Tony/RDJ) do so. Looks odd, especially as the leader/one of the Big Two. They've always or mostly been drawn roughly the same height.
Civil War's established cast gives it an edge, but that's not saying I'm not going to give the BvS crew a chance. Just more invested in CW's.
Won't lie though, not a fan of Eisenberg as Lex and Gal isn't as great an actress as people keep telling me to wait and see for (I will wait and see, but people keep telling me it's comparable to RDJ and Ledger - it's not. They had much more impressive work beforehand).
I've always found even the littlest mentions of Captain America or The Avengers by Cyclops very interesting. How do the X-Men view the rest of the superhero community? How do they get along, especially Cyke/Xavier with other leaders? Do they get along with some of the big heroes?
MoS had many flaws. It's OK to like the film, hell I enjoy it, but people shutting down others for pointing out potential flaws are clouded by the fact that the film has been described as 'dark' since it first became an idea. Dark, unfortunately, = superior/one above all. MoS was a pure example that that is not the case.
Same goes for those same people hating on Avengers. Fun/not dark = crap.