Leo. He carried Fnatic through the most difficult matches, he is Fnatics 2nd caller (listen to Boasters interview please).
Leo is even before aspas the best rated Valorant player since 2021 on VLR and other websites. He is performance wise the GOAT of this game. Leo always delivers, always wants to win, Leo is the best in his role and also a great caller - basically Fnatics upcoming IGL in the making, which has been announced for more than a year now (Boaster said again and again that he sees only Leo in following him as an IGL).
Also - Leo is just got 20. He is not old. It's the same with Derke and the others of Fnatic (except Boasty). The squad is simply still very young in international comparison.
People who pick hiro either have no clue about Fnatic and Leo or they simply forgot how insanely good Leo is and just pick a rookies few good matches now as an indicator for being better than a several times awarded MVP of Majors etc. - who (again) is the best rated pro player of this game in VCT when you combine all seasons.
hiro is a great player, though. He will have a great future - maybe even at Fnatic. Because nobody of us know how quickly Leo will be back or if he will be back at all, since life and health is much more important than being a pro player. Or maybe hiro will be back at some point replacing someone else forever then. It's simply nothing anyone can say yet. For now every FNC supporter should be happy that hiro is part of the team, doing his best do fill the role.