Greatest Greek Hero?!
Question: Hercules.
Answers: Hercules.
Kratos.
Not a "hero" in the traditional sense, but I really love Icarus. I've always disagreed with the "moral" of his story... "don't reach too high" blah blah blah. He was a normal boy who reached too high, and yes, he failed and died... but became a legend. So I guess it was worth it.
As for more standard "heroes"... probably Prometheus.
Demetrius Bianchi. lol.
Alexander the Great
Alexander the great. A real time hero.
He came, he saw, he conquered.
Have a nice day.
Troy