Art quality is subjective to the person. Waratah's stuff is very nice, but it tends to be the same - the worst part about Waratah are his prices, and his attitude - one of which is very important to the consumer - the other is a matter of preference.
For myself, I prefer Makc's work, because I'm always satisfied with it - Anomander does great stuff too, and he's also a cool guy.
So lets stop with this "whose better" argument.
Art quality is subjective - eye of the beholder, and all that.