For me, there's so many factors at work in a movie/TV show in terms of genre, tone, casting, plot, etc. that there's no way at all to group everything into one of two possible categories and then choose one. Some people do seem to largely approach superhero films in that way where they choose Type A (Batman v Superman) over Type B (The Avengers), and okay for them, but...Boardwalk Empire is one of my favorite TV shows, but I quit Penny Dreadful after three episodes because I just wasn't enjoying it. I certainly like the idea of an HBO Batman show, but I wouldn't actually know until I saw it whether it was more like Boardwalk Empire or more like Penny Dreadful, not in terms of specific characteristics but in terms of a show that works for me or a show that doesn't.
Similarly, Batman Begins ranks among my favorite superhero films, The Dark Knight was good but not on the same level for me, The Dark Knight Rises was pretty good but another step down, and I didn't care for Batman v Superman. I really like Iron Man 2 but not The Avengers. It just depends.