NEKOI: Watanuki's the type who somehow ends up muddling his way into all-girl events as the only boy there, but that doesn't make him "popular" in the usual sense. He’s the kind of nice guy who’d stop a stranger to offer help carry their bags.
OHKAWA: Watanuki has a mixture of specialties, doesn’t he. If you want someone to cook, or someone to look after things, then you’ll turn to Watanuki.
FULL INTERVIEW re: HOLiC, Tsubasa, and the creation process.
They are very subtle about calling Watanuki everyone's bitch. :(