Off the bat, not Minato. He's hardly a father.
Fugaku cared for his boys, but Itachi's promise and Sasuke's seemingly less promise made him pick favorites.
Shikaku was a decent Dad, as was Inochi.
Jiraiya has got to be it, though. Well... Yeah, I was going to say Orochimaru for Kabuto but.... Yeaah...
Jiraiya is the best father figure.