In my opinion, Ender. And yes, I like the new game for sure, but I can't play Carving Chaos for a long time as I used to with the Ender game.
For me, this is because the Ender game is a team game about collecting pages to defeat the ender and everyone gets a win. In short, it's not a competitive game.
Whenever I play Carving Chaos, it stresses me out quickly. Probably because it's a competitive game. Indeed, there are multiple competitive games including Skywars, Eggwars,... But for me, this is a different kind of competition.