Probably any one where Iron Man doesn't die lol. I dunno,just thought the directors tried too hard with Endgame to make it better than Infinity War. The story arc and character development was on fire ,and the story line was really smooth in IW . Endgame just seemed clunky and all over the place. Meh , I guess it's the differences in (fan) opinions about movies and characters that make the MCU so great .