Oh, no! I can't handle the implication of Hiwatari liking Daisuke like that! Ugh! THE ANIME COMPLETELY MESSED UP SATOSHI'S CHARACTER BY THE WAY. In the manga, they don't state whether he likes Risa or not. They hint at it randomly, but realistically, guys, do you REALLY think he'd like her? They have almost nothing in common. They're, like, polar opposites, c'mon!!! 

 As for the Daisuke thing, they even have an "interview" at the end of one of the mangas, where Satoshi CLEARLY states that he likes girls. 

 READ THE MANGAS.