Candidate for Goddess is a great manga with solid characters and amazing art. The story is very deep and always has a sense of mysteriousness, though it doesn't get to the point that you become aggravated. Sure, there are some clichés like "I'm gonna reach the top! The best of the best!" but what would a shounen manga be without it?
The story also gradually builds character connections in a way that nothing seems rushed, even though the manga is only five volumes long. Honestly, I can't really complain about anything except for the fact that it ended! ^_^