i what regard?
i cant do an apples vs apples test as i dont have a d14 to hand but the d14 is a little lighter, but not as much as you would expect. the d14 does have a slightly more rough feel to the base, they are both machined in a circular fashion but the susanoo is done to a much finer finish. not that i am saying thats better for cooling, more an observation. i wouldnt say their is much difference in the thickness and quality of the fins just maybe the d14 has had more time spent on how they are fastened together around the edges of its towers.
i do think the d14 has a more friendly mounting system with its bigger, chunky thumb screws and handy screw driver thing but i dont think it would match it cooling wise. noise wise the d14 isnt as loud on 12v but it has fewer large fans which i would geuss move less air. the other plus of the susanoo is the cooling effect it has on the board, as its a blow down sink and its so big it cools everything from the top of the board down to the 2nd pci expansion slot. so while primarily its cooling the cpu it also helps cool the vrm and power regs, the ram, the nb/chipset of the motherboard and your gpu too if it will fit under (580 wont, others idk).
epeen wise, well the d14 is the new true init so i guess its more if your a sheep or a wolf