Part of the journey is the end. The reckoning is near. The time has come. Sacrifices must be made. This is the real Avengers: Endgame.

So...which Avenger can grow the best mustache?

Robert Downey Jr. is facing off against co-stars Mark Ruffalo's and Chris Evans in the ultimate beauty competition. He posted on his Twitter page on Wednesday a collage of photos of each actor sporting a mustache—him at the Iron Man press conference in Tokyo in 2008, a pic of Evans at the launch of the Broadway play Lobby Hero in 2018, and an old portrait of Ruffalo, taken by photographer Jim Wright.