Lord of the Rings The Two Towers & Return of the King
While I agree on The Return of the King, I always found The Two Towers slightly inferior to The Fellowship. The Battle of Helm's Deep is damn great, but the overall film is not as well paced as the other two, and it lacks that feeling of idyll, charm and discovery that made the first one outstanding for me (while also lacks the sense of constant danger and almost despair that blends into the greatness and epicity of the third one). The Fellowship of the Ring is the entrance to the Middle-earth, and I'd say it's almost perfect in being that. It does an awesome job portraying the Tolkien universe and the first steps of the fellowship.
The Two Towers was incredible too, but it was like a couple of steps back in that regard and, apart from the Helm's Deep, it didn't have its own strong feeling or sense of "somethingness".
But that's just my opinion, and I know it's not the most popular one. =P I understand why people would prefer The Two Towers over The Fellowship. In the end, both are incredibly amazing for what they are.
I'm sure there'll be disagreement with these:
Blade Runner 2049
Indiana Jones and the Last Crusade (very close with Raiders of the Lost Ark, but I love the Ford / Connery combo here)
You're right, there's disagreement. =P At least with Blade Runner. In the case of Indiana Jones, the first and second movies have more or less the same quality to me too, I couldn't choose one or the other.
But Blade Runner 2049, while also being a good film, wasn't as powerful and top-notch as the first one, in my opinion, and I think the main reason was the awesome villain the original had. I saw Blade Runner a long time ago, so I've got more memories that anything else, but I remember that the villain was great, not only for the scene we all know, but in general. Roy was kind of Blade Runner's Joker, in the sense that his presence on the movie lifted it to an even higher level (also, it's easy to like him). Blade Runner 2049 didn't have anything near that.