To those who said hawarrens' left hand render looks better:

Of course it does, if you had understood what he said in his post you would know that the lighting was correct for that particular render, and incorrect for the render with GC.

This does not in any way alter the fact that ONLY in the right hand render are the shaders operating linearly and accurately, because GC was used.

Using linear shaders does NOT automatically equal great renders.
Using non-linear shaders does NOT automatically equal bad renders.

How many times do we have to repeat this before we stop arguing back and forth about two points of view that IN NO WAY CONFLICT WITH EACH OTHER?

"If I were a shadow, I know I wouldn't like to be half of what I should be."
Mr Otsuka, the old black tomcat in Kafka on the Shore (Haruki Murakami)