Fluxbox.

Afterthought:

One of Fluxbox's killer features for me is tabbed windows.

Trinity/KDE 3.5

KDE as it stands in Kubuntu 14.04. Also love i3 but still learning it. Can't use it for work yet as I'm not good enough or fast enough on it. Also still sorting out a good config for myself.

KDE 4 is probably still my favorite, but with the release of 5.6, I'm finally beginning to come around to 5.x (soooo nice to no longer be alpha quality).

I also like the looks of LXQT, although it's still got a ways to go before it becomes one of my regulars.

I'm an openbox (stand-alone - no DE) user and have been so for many years... as everything else seems overly annoying to me. :)

Mate.

Mate/Xfce

I absolutely despise Gnome 3.

DE: K
WM: Flux

I dislike Gnome not only for it's interface (that's probably just personal preference) but for it's politics in how it is exclusive as if it is making a "Highlander" bid - "There can be only ONE!!"

I very much like KDE but it is just faster and easier to run Xfce with Kwin as compositor and enable full KDE support. Xfce makes a more blank canvas IMHO.

started playing with awesome.
it would be nice to get a one-size-fits-all solution for both my desktop (where i want both floating and tiling) and my netbook (that needs tiling due to small screen, and also something lightweight due to small cpu).
so i don't have to remember 2 seperate sets of commands and keyboard shortcuts.
looks like awesome could fit the bill.
added bonus: forced to learn lua, which seems to have many good use cases.

WM: OpenBox
DE: Xfce

Xfce because it isn't annoying.

Otherwise Openbox without DE at all.

They all run the same OS. (:p heheha)

Hi SE.

Same as me, except I also despise Unity.

Well that goes without saying... :)