Rendering 101: Which Engines To Keep? (Patreon)

Heyhey,

as the basics phase of rendering 101 is coming to a close, I'd like to continue with covering more intricate topics. However doing so for six(!) engines in parallel is slowing down this course too much.

I'd rather focus on a few select engines. Help me decide which ones to keep and which engines can go.

So here's the question:

Which engine would you like to keep covered in Rendering 101?

(Please just pick one.)