Then Prisoner of Azkaban, Deathly Hallows Part 2 and Half-Blood Prince.

And PS

Definitely. We get to see Harry experience the magical world for the first time before his life is consumed by the threat of Voldemort. And there isn't the teenage angst element of the later films.

This one felt more magical for me. But maybe that was my age when I saw it.

I think so anyway, because they introduce us to the magical world in an exciting way. I think both the book and movie achieve this.

Also PS

PS , and DH too depending on what kind of magic , the kids magical magic was the most in PS while in DH there were the epicest battles and the ruthless crazy stunning magic

and PS

This and Prisoner of Azkaban. DH PT.2 as well.

The first two movies, by far. After these, the movies practically lost the magical feel, which was a huge downside for me.