User blog comment:B214/Question and Answers 6/@comment-66.187.113.196-20161221232306/@comment-10330822-20161222081903

Well, remember that all gods are considered to be at a God-Class, so all Greek Gods, like Zeus, Poseidon, and Hades considered to be at a God-Class, its a special class for them. In fact, Hades is considered to be stronger Zeus and Poseidon, and has a place among the "Top 10 Strongest Beings", which beings like Sirzecha and Ajuka are a part of.

This means that among all the gods/beings and all the mythologies, Hades is one of the 10 strongest.

Now, as for the other greek gods. Here's the thing. God-Class, I feel, encompasses multiple possible other equivalent devil classes. In other words, a young God-class being may not actually be stronger than say a Satan or Super Devil, and may be like High-Class or Ultimate-Class levels in strength, they just have a much higher threshold. In fact, even though Hades is presumably the strongest Greek God, he seemed to be afraid or at least intimitated by Sirzechs true form when they met in the Realm of the Dead.

As for the Titians, I feel that might be more up in the air. They may be God-Class, because, as far as Greek mythology goes, the Titians are the "old gods" that the Greek Gods overthrew. But since they lost, it could be assumed they were weaker than the current gods. As for the gods before them, like Uranus, they may have been even weaker.

This is all just based on the assumption though that you need to be stronger than a god to overthrow them. In other words, you'd imagine the current gods of the Greek are the strongest.