Idk I think Sahara actually loves and cares abt Suu... cuz he kinda ignores his nature by being w Suu and attending to his needs and listening to what he wants...
But the other guy broke Suu's ankle and almost got him killed... and the only one he cares abt is himself... eventhough he is a human and capable of human feelings...
So it's a no brainer for me.
Oh did I mention he broke Suu's ankle? Like what is this killing stalking?

I really don't know how people get to choose sides in this story. Between the prince and the dragon, I have no idea. There is no right or wrong, everyone has qualities and defects, mistakes and successes. The construction of the characters is just incredible.