NF-P12(The P is for pressure
) had always been my goto fan, but they have some new ones out like the NF F12. Both come in a 4 pin PWM version(IE NF-P12-PWM).
Do not use the NF-S12 on a rad as it has very little pressure. It is a low noise/pressure slightly higher CFM fan.
Of your 2 options, I am willing to bet the Cougar will be better
Ohh and the H60 is not that thick, almost any 2 fans should be able to tackle it