Dude might have an annoying voice, but he is all about sticking to his code and I respect that. The episodes of him grieving Yusuke in the beginning were fuckin awful(in a sad way), along with him getting beat up every day so his friend wouldn't lose his job. And when faced with his own death, he didn't back down, not a single time. People show you who they truly are when faced with death and Kuwabara was a man through and through
Yeah.
Dude might be a bit of an irritating jackass, but you fuck with his friends you fuck with DEATH.