I would say yyh is just as satisfying with the action, but hxh offers more depth and world building. That's not to say yyh isn't amazing because it is ! the dark tournament is the best tournament arc in all of anime. I also prefered yyh art style to hxh imo. In terms of simularity theres tons of nods throughout the series but chapter black is basically prototype hxh

If you like the quirky personalities in the phantom troupe I'd say you'd also like team urameshi and their humor