Mrs_NyQuil is really starting to get turned off with the MCU with the overwhelming CGI, time travel, multiverses and magic.
What was nice about the earlier fare is that it was more bound in current reality.
Winter Soldier I think is the best of the films, along with Iron Man, Guardians of the Galaxy, Black Panther and Thor: Ragnarok. Spider Man: Homecoming was good as well.
I think Avengers are great as an achievement in franchise history, but on their own if you haven't seen any of the other films, I don't know if they are as good. Infinity War and Endgame were definitely very good - maybe it's that I have a hard time comparing them to the more individual films.