Best file system for a busy webserver

[Paul Schmehl]

Does anyone have any opinions on which file system is best for a busy 
webserver (7 million hits/month)?  Is anyone one system noticeably better 
than any other?

Just curious.  I'm getting ready to setup a new box running FreeBSD 9, and 
since I'm starting from scratch, I'm questioning all my previous 
assumptions.

-- 
Paul Schmehl, Senior Infosec Analyst
As if it wasn't already obvious, my opinions
are my own and not those of my employer.
*******************************************
"It is as useless to argue with those who have
renounced the use of reason as to administer
medication to the dead." Thomas Jefferson
"There are some ideas so wrong that only a very
intelligent person could believe in them." George Orwell