Oh and just based on specs and from my hand over the fans the Cougar seems to be better:
All cougar fans are rated at higher static pressure than the phanteks 140 SP at 1.33mm:
CFM is also showing higher ratings across the board.
Surprisingly the 120sp is even lower static pressure which is strange because usually the smaller size has more static pressure (1.28mm):
but as you can see on the Cougar page the 120mm's are actually the highest static pressure at 1.74mm and 2.2mm.
You can really feel the airflow movement difference. The cougar seems quite a bit better. Again it is a crazy orange though. If your not hiding it, painting it or building an orange rig it is pretty difficult to miss it
For some perspective you could get the Vortex HDB 140 and use the low voltage adapter bringing it down to the same CFM as the 120SP at 100% (although the static pressure would be fairly low for the vortex set to low RPM it is actually still quieter than the others even at high RPM its only 19db for loudest Cougar vs 24db for 120sp). Really across the board the cougars appear to be better.Edited by dmfree88 - 6/20/16 at 5:51pm