I like Sway, it obviously needs a bit of configuration to be useful, but that's partly what I like about it, and using a distro like Guix (Nix configured with Lisp) makes it easy to have the same settings on multiple PCs. Otherwise I like GNOME; it's well supported and has many good apps. Touch/touchpad support is really good as well.

XFCE I find a little tricky to get tiling working right

Just replace xfwm4 with i3wm for example. That and the fact you can use most Xfce tools outside of Xfce is why it's my favourite.

I've been an user of XFCE4 for a decade now. It just works, easy to set up, low-resource impact.

Whoa, but the comma splice.

Are we doing popularity contests here?

Moksha DE is also good one. Budgie feels more bettter for new users than Cinnamon

Would openbox count?

80% of the full UI of a proper de but with 30% impact on really slow hardware.