Personally, the most passionate one is the fifth one. It’s very deceptive. I’ve watched all six of them. The male protagonist in the fifth one, Daemon, is a master in fighting. He can fight with Digimon with his fists. Pick, even the Holy Knight Digimon like Red Lotus Knightmon in the third part were knocked over by one punch. In the 6th part, the male protagonists from the first 5 parts will appear in the next few episodes. In the previous part, there are digital fusions everywhere, which is not very interesting