Thanos' death in Avengers: Endgame by Iron Man wielding the Infinity Stones is the most iconic and satisfying death in the MCU. Thanos' beheading by Thor in Avengers: Endgame is a darkly satisfying moment of character development and raises intrigue for the plot. Thanos' death in the What If...? season 2 finale by Killmonger snapping him out of existence is a poetic and satisfying demise using the Infinity Stones.

Though he's undoubtedly one of the most powerful characters in the MCU, Thanos has been killed multiple times in different continuities, and some of his demises were far better than others. First introduced to the MCU in 2012’s The Avengers via a post-credits scene, Thanos quickly became the scourge of the MCU’s movie timeline throughout the Infinity Saga. Serving as the primary antagonist of the MCU’s Phases 1 through 3, Thanos’ goal to amass the Infinity Stones and wipe out half of...