RESEMBLANCE
I just realized that Hibari Kyoya looked (and acted) like Kuchiki Byakuya. It must have been that resemblance that got me intrigued in Hibari's character in the first place.
Hibari Kyoya
Kuchiki Byakuya
I may not be an avid Bleach fan, but I do love Byakuya. The resemblance is too great to pass up notice. Maybe, that is the reason behind my sudden interest in Hibari, instead of Yamamoto or Gokudera (as such most girls found them the endearing guardians).