So um why do you have such a fascination with this guy? Only because he conquered India?
Personally, in order for me to call someone great, they would be great adminstrators and great conquerors. They should try to improve the lives of all people and do good. Cyrus was the first to do that, despite the first king to gain so much power. Power corrupts, but he didn't at all. As a result, he is my inspiration.