Yeah, Nen is the clear victor here imo. It's not like Chakra or Reiatsu or Ki where everyone has the same techniques (ie flying/walking on walls, shooting beams etc.) where everything is just a power system A>B>C. In HXH anyone could have literally any kind of ability at any time and every factor is unpredictable which also perfectly suits the world of HXH where the main theme is not being the strongest but surviving. Like a realistic One Piece "Enjoy the adventure but this is the real world, anything and anyone can kill you if you drop your guard." Almost like being in the wild.
