Favorite nagito sprite? I feel like he gets so many iconic poses
Oooo, good question! He really does, and that second one is definitely one of the most fun imo. Especially the first time it was used in ch1's trial as an unnerving first crack in the facade he was putting on.
As a pair these two never get old either, especially when he transitions from the first to the second:
Though if we use 'favourite' more broadly than iconic poses I need to mention these two.
He's biting his lip! Small detail, but it turns what should be a serious expression into something dorky and subtly emotionally layered. It really captures what he's like when he isn't spiraling.
The one that's only used once, in an internal monologue in Dangan Island, when he's afraid of making Hinata hate him by being weird. That says so, so much about him.
Neither is exciting visually but they both really help humanise and add depth to him imo! So I'm personally fond of them.