I have this case which has a mesh front under the grill. It has 2 x 120mm front fans, 2 x 120mm top fans, and 1 x 120mm rear fan. You can see the fan locations at the link I provided. I'm wondering which ones I should set up as ins and which ones should be outs to give me the best airflow/cooling.
In future its pretty simple;
-Heat rises so dont put outtake fans on the bottom/too low and always put top as exhaust
-Dont put fans blowing different ways right next to each other, they just cancel each other out
Besides that, you dont want hot air being blown in your face, do you? So front is always intake.