which fan setup is better?

i got 6x fans in my computer... 2x in back, 2x in front, 1x on side/top, 1x on side right

should i make all of them jus push air in?

or

make all of em blow air out

or

50/50?

the idea is to have all fans blowing in one direction (cool air ging in front-out the back). Cool air in, hot air out.

If they are all blowing in or vice versa, you don't have airflow, you only have a bunch of noisemakers working against each other.

I would set the fans that are higher up in the case to be blowing out as hot air rises. Have the fans at the bottom of the case driving the air in as it is coolest down there. This is of course if you don't have a pet that sheds where your going to load up your case with dog/cat hair .... snake scales .... billy goat beard leavinz and that sort of hoe jazz