WetGeek The best Linux desktop is the one that best fits a user's needs and preferences.
By the way, I did read the Tech Radar article - every word - and enjoyed it thoroughly. I recommend it as a guide for anyone who's still searching for a DE that meets their needs and preferences. It's well written, well edited, and unlike the impression that the title gives, the article does not insist that any one DE is the "best" for every user.
I am a bit surprised that it has one glaring omission, though.