Milo Ventimiglia can't pick just one favorite birthday, he's got three! The "This Is Us" actor's first pick was when he turned 21 and ghosted everyone to eat pizza and watch movies at a hotel by himself. His second choice was when he was a kid and had a Batman-themed party to express his love for Michael Keaton's Bruce Wayne. Ventimiglia's last choice was his 39th, when he was surrounded by all the people who've made a positive impact on his life.