Which one(s) and why?
Bodhi Linux (when trying out on a 32 bit laptop) -> Xubuntu (main laptop) -> Linux mint (the distro I’ve used for the longest time, both on main laptop and a desktop got along the way). On the side, I briefly tried Arch first on a wm (as well as Haiku and TempleOS), and later, debian on that 32 bit laptop for earlier. That’s when I first went for a minimal install with i3. Later switched to Arch with i3 on tower, and just yesterday, Debian, also with i3 on main laptop.
My reasoning behind using these two different distros for essentially the same type of setup is that my laptop is more likely to be the only computer I have at my disposal when I urgently need it, so stability is more important, I can’t run the risk of having an update break it. I can be bolder and test more stuff on my desktop knowing I have a backup if mess up. Arch on my desktop is also partly because I use it to play games on Steam, and since SteamOS is based on Arch, I figured it’d have better integration.