I loved pretty much all of them except The Dark World. TDW's writing was all over the place, it focused on utterly useless support characters (The Adventures of Darcy, The Intern, and Her Two Boobies), the pacing was like the fast-forward button getting stuck on your remote, there was no emotional impact for any of many (allegedly) emotional scenes, the villains were literally the most useless ones in the MCU to date (let's just say their propensity for suicide was mounted on a species-wide scale), and the "surprise! (not really)" ending was tacked on to satisfy a rabid fanbase, which utterly drained the movie of the one meaningful scene/story arc it had going for it.