Whom do you believe was the best, worst and in between father/father figure? Think carefully and objectively and recall all their actions and how those actions have effected their children's lives. Give me a moment to make a poll.
Jiraiya was one of the best father figures in the series. Iruka was exceptional as well.
As for worst, the Fourth Kazekage is one of the worst fathers. Despite good intentions, Minato is pretty bad as well.
The Fourth Kazekage emotionally scarred his son, and provided him no care or guidance in his childhood. He also basically confirmed to. Gaara his view that he was a monster, and drove him towards insanity.
Minato died on the day his son was born, sealing Kurama into him. He knew that his lineage wouldn't be revealed to him and that he would suffer growing up, as an orphan. Kushina could have perfectly performed the RDS herself, allowing Minato to remain alive.
He did, admittedly, save Naruto when he was about to be consumed by Kurama, but then during the war, he did precious little in the way of keeping Naruto safe. He also lost Yin Kurama, which would have meant Naruto's death had Obito not regained control of his body.
Minato had good intentions, and tried to do what was right, but the fact is, as a father, he failed.
The worst father figures, however, are Orochimaru and Madara. Madara was somewhat a father figure for Obito, although Obito denied this repeatedly. He was a teacher, a protector, and a caretaker for him. Despite the fact that Madara didn't view him as anything more than a pawn, and that Obito didn't view him as anything more than a source of ideas, he was a father figure.
Orochimaru abused Kimimaro, who followed him blindly. Perhaps Zabuza could make this list as well.
EDIT: Fugaku is a good point, actually. He was a terrible father as well. Put so much pressure on Itachi and encouraged rebellion to the point that Itachi agreed with Danzo that genocide of the Uchiha was the only way to prevent civil war. He also neglected Sasuke for the majority of his life, and fuelled an inferiority complex in relation to his brother.