Why do you get Kureno and Shigure requests, dear ficcer? Because they have a great dynamic! the younger man, who admires his cousin, and the admired older man who wishes his cousin would get out of his way. Of course, Shigure and Akito are classic, not only because of the canon nature of the pairing[there's always a certain percentage that do canon ships], but also because of the fucked up nature of their relationship. I think there can be some very good fics with these two- especially after canon.

My theory is that the two of them will probably not be relieved of their personality traits, even after the end of the series. Shigure will probably still be ruthless and Akito will probably still be controlling. There's fireworks here! It's not so much cotton candy, like Tohru/Yuki, but one of those desserts that is on fire.