There's nothing quite like a good franchise ranking on Letterboxd. The social platform for film lovers offers a unique pulse on what audiences truly think—free from the critic-vs-audience divide you see on Rotten Tomatoes. And when it comes to the Marvel Cinematic Universe, opinions are as varied as the Infinity Stones themselves.

With over 30 films spanning more than a decade, the MCU is one of cinema's most sprawling franchises. That makes ranking it a Herculean task, but Letterboxd's average ratings provide a fascinating consensus. From the groundbreaking Iron Man to the emotional gut-punch of Avengers: Endgame, here's how the community stacks the best of the best.

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The Underdogs and Surprises

Kicking off the list at number 20 is Black Panther: Wakanda Forever (3.3/5.0). Following Chadwick Boseman's tragic passing, director Ryan Coogler crafted a heartfelt tribute that shifted focus to Shuri (Letitia Wright). The film's character-driven narrative and emotional weight earned it a spot as one of the most underrated post-Endgame entries.

At number 19, The Fantastic Four: First Steps (3.3/5.0) finally gave Marvel's first family the cinematic win they deserved. Set in a retro-futuristic 1960s, the film channels classic Marvel Comics vibes. Vanessa Kirby's Sue Storm steals the show, with one Letterboxd user declaring, 'invisible woman ALWAYS serves.'

Number 18 brings Shang-Chi and the Legend of the Ten Rings (3.4/5.0), a Phase 4 standout thanks to jaw-dropping martial arts choreography from Jackie Chan's stunt team. Fans are eager for more, especially with Simu Liu confirmed for Avengers: Doomsday.

Classics and Cult Favorites

Captain America: The First Avenger (3.4/5.0) lands at number 17, praised as one of the MCU's most underrated films. Its period-piece setting and Steve Rogers' defining origin story resonate deeply. One user summed it up: 'every unpatriotic cell in my body leaves when I watch this movie.'

At number 16, Spider-Man: Far From Home (3.4/5.0) delivers a thrilling post-Endgame adventure. Jake Gyllenhaal's Mysterio is a standout villain, even if the film struggles in its second act. For more on the web-slinger's future, check out Spider-Man: Brand New Day's MCU Timeline Revealed.

As we climb higher, expect heavy hitters like Iron Man, Thor: Ragnarok, and Avengers: Endgame to dominate the top spots. Letterboxd's rankings prove that while the MCU has its ups and downs, its best films are truly unforgettable.