Air pressure for case cooling?

[$loth]

What type of pressure do you prefer for case cooling? I've always preffered positive pressure over negative myself because then the airflow direction is constant and directional and it can help with controlling dust!

How about you guys?

And, if you don't know what's meant by positive/negative pressure then:

Positive more air being pushed in than expelled (intake fans take in more air than exhaust)
Negative more air being expelled than taken in (exhaust fans expelling more air than intake).

[Spawn-Inc]

well i've never really put much thought into it but i would have to say positive. once i get my new case running with fans i will have mostly positive. 1 x 120mm fan blowing in, 1 x 250mm fan blowing in and 1 x 120mm blowing out plus the powersupply (135mm and 80mm fan). so 370mm in and 335mm out.

[Cagedconnerman]

I prefer a negative pressure case, that way cool air is pulled in at every not-airtight spot, it's hard to combat all the dust but i usually mess with the insides once a week anyways, so i just spray all the dust out.

[The boy 4rm oz]

Yeah I'm with Cagedconnerman, more air in is better for cooling.