which OS do you like the most?

Arch Linux. It's too convenient. The AUR hosts a massive amount of packages, wiki is super detailed and covers solutions for all sorts of edge cases. Needs a bit of tinkering to get started but once things are set up it's very stable, and still gives you a lot of freedom to tinker with your system however you want. The only other option I've considered is NixOS which has some pretty interesting features