Well, to be fair I am a huge inuzuka fan. More so for their prowess as trackers tho. I wouldn't say they are overtly powerful. They are dogs essentially. I believe the inuzuka true strength comes when the pack fights as one. Just like dogs. Now I'm not sayin Kiba won't become powerful. But he will never be stronger than naruto or sasuke, let alone several others. But he will be narutos right hand man. Remember when minato fought A and B, there was an inuzuka with him. I'm sure every great hokage need the inuzuka. They are valuable.