At the moment my ratings go, from number one to seven, as follows: Endgame, Winter Soldier, Ragnarok, Civil War, Infinity War, Iron Man 3, Avengers. So yes, Iron Man 3 above the first Guardians and Black Panther, among others. Blasphemy to some, I'm sure. I can't help it.
I understand why (quite) some people dislike it (to some extent), but I just love the Shane Black smoothness and the combo of him and RDJ just really works for me (just as in Kiss Kiss Bang Bang). Also, the chemistry between RDJ and Gwyneth is just so amazing. That really struck me on my rewatch of the movies before Infinity War. In all three Iron Man movies, they are just so very good together. And sure, Aldrich Killian is a shit villain.
Hehe, that's pretty amazing to me. Ranking IM3 below something like The Dark World is mindblowing to me. But, hey, to each his own.
I actually genuinely liked Dark World. It's not high on my list (it's right above iron man 3) but I enjoyed it more than IM 3.