The difference between 5Dm2 (and 7D 60D 600D and 550D - i haven't used a 6D) and 5Dm3 is massive when it comes to moire. Not 100% and 0 but enough to make a huge difference for people who actually use the cameras, rather than those who just bitch about them on the Internet.
I still think that in scenes where Moire isn't an issue, the 5D2 looks better.
5D2 seems(to me) to carry more detail in some shots, and have better color. Basically, i feel like i can confuse 5d2 footage with the big boys(Alexa, Red), or even film sometimes. On the other hand, i feel can pick the 5D3 out of a lineup almost every time.
I always figured that it was because the 5D2 came out before they had a cinema line, which the 5D3 was clearly nerfed to protect.
But i agree that based on the stats, the 5D3 should dominate.
I don't know about that, the 5D2 has almost 2 stops worse SNR and once you sharpen the 5D3 files in post....
Aliasing and moire come up pretty easily too.