WOW it looks like many people here does not know what they are talking about. If you cna not make a difference in quality in this shots them you are just a amateur. The Canon DSLRs offer more lights if you are in a Full frame camera like the 5D3, but in crop bodies that is not the case.
The Red cameras shot raw, that means you have endless possibilities in post, try to fix a under or over exposure shot in a HDSLR file and you will find yourself in real problems.
Is you do simple work them get a 5D3 if you do commercial more demanding projects them a HDSLR cant beat a RED or even a old RED ONE.
HDSLR are great for lots of project like what we do, we do actually have a couple of them, but as you move to better and more demanding jobs you need something else. Not even with Magic Lantern RAW option in the 5D is good, it is unstable and you can not trust it for a paid job that it is waiting to be released, it is just too much of a risk.
also consider, if you get a RED, is your editing equipment, video card and also Hard Drive space at the level of performance a RED RAW footage need?
Think before you talk and do not talk just to talk.
Scarlet crop is 1.6 compared to the CERO crop on the 5D3 of any other full frame, at the same time that is not correct sensor size for a Traditional Movie Camera, 35mm Kodak frame is the norm, simply. That is why many people preferred the 7D for commercial work because they can use the amazing cinema lenses available at that sensor size.
Canon lenses are amazing in quality and sharpness, but a pain to manage focus, but for the price compared to cinema lenses WOW get a few and you are on your way to great results.
Also the red footage is not the best compression ratio for those test. Just my humble opinion