guys this review is like a wet dream. Job well done! But, how about some AMD comparisons?
Two more: If the Ninja benefits more from placing the second fan on the adjacent side (instead of the opposite) is it going to be the case with Mugen2? I know the design implies no, but since you were on the subject you could have tested it.
Second,why did you not compare version B to the original Mugen2? Scythe sells the retention mechanism for less then $8 in my area and the original Mugen2 retails for less then $40 so it might be beneficial to buy them separately intead of revision B for $50.

I still have my original Ninja on my HTPC running a e8500 nicely.
Still, it seems there is no cooler beating my nh-D14 (with 3 powerful fans) any time soon....

Unimpressive, good looks doesn't make a cooler high end/performance. Copper heat pipes with aluminum fins isn't the best and it leaves much to be desired. Modern boards can handle up to 1kg of weight while many are simply to large and are feather weights. I rather have a very heavy cooler and have the room instead of a fancy eye candy cooler.

Industrial/game