This custom unofficial Kali Linux ISO has three window managers:DWM, Openbox and i3wm. At lightdm screen you can select which "desktop" to login.
At Lightdm you can select:
DWM - stock DWM from the debian repo
Custom-DWM - customized a bit (Win Key as ModKey) latest DWM compiled from the official repo code.
Openbox - my openbox setup with conky.
i3 - my i3 setup with conky.