benchmarks

hi all,

lately at work there has been a debate over
mysql versus postgres

im just looking for independent benchmarks

i personally love postgres 
at work they like mysql

currently we are investigating other possible db solutions

and they are looking at oracle, i think we could save a lot of dollarsz 
if we decided to go to postgres


i was wondering if anyone can share links to  any current independent
benchmarks 

as i would like some real data on these 

or at the very least give me a how to so i can do my own testing!

thanks!