Totally share your opinion, Fight.Card! Kai and Rei are the best! And Tyson and Max were weird in the first two seasons!
I'd say my fav episodes were either in the first series, when Kai betrays the Bladebreakers, or in G-Rev, when Kai fights Brokklyn, loses, then wins, before ending up unconscious.exhausted....or when Kai fights Tyson in the World Championships - you know, when Kai flashes back?
"When I realised I couldn't be you, the only thing left was for me to beat you!" Or something like that. Anyway, the flashback clips were sweet...you could see how much Kai really cared about tyson