For my Phanteks Enthoo Pro-M Tempred Glass, for the front fans.... 3 120mm's or 2 140mms?

[crispy4u]

I have the Phanteks Enthoo Pro-M Tempered Glass and I have heard controversies about using 2 140mm fans or 3 120mm fans. I was planning on getting three noctua fans for the front and then using the 2 140s for the exhaust and then 2 on top (By purchasing another), is the wrong move? Or should I keep the 120's at the front?

 

[Aeacus]

3x 120mm will give you better airflow (about 10%) with higher static pressure while 2x 140mm will be quieter, provided the fan specs are equal between 120mm and 140mm. So, it's up to you.
I'd go with 2x 140mm since i prefer my PC to be quiet.