Fandango for me, it sorts alphabetically by release date (ignoring "The" in titles). The only downside is the occasional ad that you have to tap out of and it defaulting to "Spotlight" instead of "Theaters".
Be sure to set your favorite theaters by tapping the heart at the top-right when viewing a theater, then use the "My Theaters" view in the "Theaters" section to jump to a shortlist of the few theaters you ever go to.
One of the key things for me is it shows in the movie listing whether or not a movie has a "no passes" restriction. I go to the movies A LOT and get free tickets regularly from rewards programs.