kqueue vs epoll experience??

[ke.han]

Hello list,
I'm trying to make a decision as to whether to set up my next production 
server on freeBSD (5 or 6 series) or Linux (2.6.x kernel).  I will 
require the large socket handling efficiency of kqueue or epoll..
I have read lots on the ejabberd and erlang sites and lists and 
understand what it takes to use kernel polling on freeBSD or Linux with 
erlang.
What I cannot find is any recommendations or experience reports which 
tips the hand in either direction.
So, assuming all other things being equal ;-), can anyone give me there 
two cents as to whether its more wise to use the erlang supported 
freeBSD kqueue or the Linux 2.6 erlang patch set for /dev/epoll ??? What 
worries me is the patch set for erlang/linux being marked as 
experimental whereas the erlang/freeBSD support is not labeled as such.
thanks for any advice...ke han