Help! Brocades and McData

Hey guys/gals,

I know very little about SANs but have been asked to find information
on the web about which is the better overall switch: The Brocade
Silkworm 3900 or the McData 3232? All I can find are marketing blurbs
and very little about the technical merits of each device. Which do
you guys prefer and why? Any feedback is greatly appreciated. Also,
any URLs you may have regarding specifics about performance testing,
etc. on these devices are appreciated.

-TIA
Jeff