I've never seen the Crystalite Brushed, except on the internet, but If I had it to do all over again, I'd have bought a couple of Crystalites instead of the two BD36s for my 2wheel drive project.
Rumor has it that both the WE and the Crystalite brushed motors are made by the same factory, same basic specs, but the QC on the Crystalites is better... (Check my build thread in the photos and videos section for some of the QC related issues I had with my WEs)......Plus theCrystals come in a doublewalled rim instead of the single wall in the WE.
From what I've seen, when the prices of the CL and the WE are close, the CL doesn't come with a controller or throttle, while the WE does.
What I'd do is buy the brushed Crystalite wheel from whoever has the best deal on them (usually ebikes.ca, but they seem to be out of stock on the brushed) , then buy a YK42 controller and throttle from TNC.