Both movies were the product of embarrassingly public disputes between their directors and Marvel Studios, but Ant-Man managed to resolve itself into an entertaining (if lightweight) heist movie while AoU was a mess of conflicting subplots and franchise tie-ins: Joss Whedon's weird Black Widow issues and inconsistent characterization vs. Marvel's obsession with clumsy sequel foreshadowing. You could pick out certain scenes in Ant-Man that felt like Edgar Wright's work, but it didn't feel patchy like Thor's bizarre cave-swimming subplot did in Age of Ultron.
Ant-Man and the Marvel Cinematic Universe
More than any other MCU movie so far, Ant-Man captured the tone of a solo comic in a larger fictional universe: casually acknowledging the existence of other superheroes without going for an actual team-up. We've now reached the point where the MCU is big enough to support cameos from familiar side-characters without it seeming forced, which is great for worldbuilding purposes. It's just too bad this only happened after the departure of Edgar Wright, who wanted to make a standalone movie with (presumably) a more esoteric tone.
Ideally, Marvel should find a happy medium between franchise crossover moments and allowing filmmakers more freedom to make a personal mark. That's why comics like Ms Marvel and Hawkeye are so popular: they have a memorable sense of personality.
