Kro is so underrated here it's not even funny. He deals massive dmg with his 3rd skill. People voting in polls for the Inugamis they have right now or they're voting for that most overrated Inugami (Belladeon) even if they don't even have that mon. The poll is very misleading so if you get a chance to have Kro don't ever feed it.
Honestly, the fire inugami is soooo overrated. The fire grim reaper is better because it has 2 AoE and better: it gains additional turn if kills with first attack! (Same as fire inu)
Light inugami is the best, when powered up skills it can do incredible damage.