Taste is, of course, subjective. For me, even as a Marvel nut-hugger, BvS was far superior to X Men Apocalypse. I gave them the same score - 8/10 - but even with it's many, many flaws, BvS was far more enjoyable overall. The only saving graces in Apocalypse were Quicksilver's and Wolverine's scenes. Without them, the movie would have gotten a 6 from me.
By contrast, Affleck's Batman was damn near perfect, IMHO. I loved almost every scene he was in. The sole exception was the cringe worthy, "Martha!" scene. But I can't blame Affleck for that.
What bothered me about X-Men: Apocalypse was that it seemed so forgettable to me. I remember watching First Class and being very impressed an then seeing DOFP three years later and finding it even more awesome.
Apocalypse was just mehh for me. One of the bigger problems was the main villain himself. That's a legendary character right there and they did not do him justice in my view. As powerful as they made him, I never got a full on sense of menace from him.
I said this in the thread for that movie, but I'll reiterate it. THere are some films in which the sense of urgency is really there because the filmmakers and actors do an excellent job of showcasing the stakes and you really feel as though the world is in grave danger.
Independence Day is a hokey-ass movie but I can emphatically say that's a film involving cataclysmic events that legitimately showcases the threat and really conveys that this is potential end of the world type stuff.
Apocalypse is one of those cataclysmic movies that seems so contained by comparison. That final battle did not feel like a stakes-high situation to me- it seemed like the X-Men vs. Apocalpyse and his minions...
Oscar Isaac is good but he did not have much to work with there and just came across as diull for the most part.
You could excise that entire Stryker scene and lose absolutely nothing except a cool Jackman cameo. I love Jackman as Wolverine, but if the only reason for a 20 minute diversion in the film that does not contribute to the narrative in any meaningful way is to have a badass cameo, I don't know if it's really necessary.
B v. S felt a lot more visually and, yes, even narratively epic to me than Apocalypse did.
Fassbender and McAvoy elevated the material and helped to make the film better than it otherwise would have been. But I didn't care for it much.