Ehh, Deepin is way too trendy-looking and visually borrows a lot from Win10 and macOS. Not to mention being ridiculously heavy. Give me KDE Plasma any day.
KDE Plasma
You spelled XFCE wrong :)
I do like LXQt, MATE, and Xfce as well. Cinnamon's okay. Xfce does hit a sweet spot of usability and is quite a nice environment in general, but it does seem to be falling behind in development. Last time I checked, most of it is still in GTK2.
I'm obligated to tell you all that I use i3-wm on Arch Linux btw.
It's not heavy at all. I was running it on a dual core 0.9 Ghz CPU for a long time and it reacts instantly to anything you do.
CPU usage for deepin was like 3% when idle on that slow machine.