I noticed in titanic movies, ismay would be the one blamed for the lack of lifeboat while not taking the board of trade in account or that the davits were designated to cope in case the laws were changed by adding more lifeboat. I wonder why the board of trade part isn't mentionned as much there.
Title is the question!
If I had to pick one it'd be Lightoller because he's so interesting a person. Back up favourites are Jack Phillips (hero) murdoch (did amazingly) and Wilde (survived so much till that point)