Batman vs Superman
DC tried to copy MARVEL and made its own version of Civil War and at the same time introduced a new face for Batman.
Justice League by Joss Whedon
Introducing so many new characters like Aquaman, Cyborg, Flash and not giving enough time to each character to become familiar with the audience.
Same mistake as Justice League by introducing new characters and on top of it Joker by Jared Leto was ruined.
Was nothing like its previous movie , and brought back Steve Trevor from the dead without giving much of an explanation .
Every other movie released by DC was concluded by a post credit scene like MARVEL , with a cameo of Superman just to make the hype but not working on it.