User blog comment:First comes rock/The strongest of the protagonists/@comment-269409-20131102171250/@comment-4680491-20131102173334

I would never argue about Kuwabara's power development, but still he was still below in fact his power comparing to the other 3 main characters is like compairing it to a giant and a fly. Yusuke, Hiei and Kurama by the end of Yuyu Hakusho were a Top Tier if not a mid tier Class S Demon.

As for Kurapika its debatable considering the fact that his Emperor Time is huge factor then again Killua's speed is heck of an advantage.