I have all of these coolers, they are all awesome in their own rights.
I seem to be getting lower temps with D14 with 3 fans thou vs H70 & H80. I never tried Comparing D14 with my H100
If you can get D14 cheaper than an H70/H80.. i say go for it, but if you have no limits in budget, i would go for H100.. then again I don't think D14/HSeries can even compete to Larkooler, as Larkooler can beat an XSPC Kit.

Originally Posted by
EarlZ
I have the D14 and I prefer it over the H70/80/100 mainly because of the performance and noise profile, Im sure the H100 is like 1-2 cooler but the noise is just too much for my liking. Between this and the Larkcooler your better off with the D14, the Larkcooler cant even beat the H50.

? H50 better than Larkooler

?
As for proof of having these coolers:
Corsair H50:
Corsair H70:
Corsair H100:
Noctua NH-D14: