Oh man, I really really don't want to cliff any of them. I think of one order and go NO BUT WAIT and then rearrange and go NO BUT WAIT and it continues. D:
However,
Marry Akihiko I guess, because he's such a sweetie and I think is good at the long term thing. Sleep with Mitsuru then, and I guess cliff Shinjiro. But hate myself forever for it, because he deserves better than what the game gives him.