I'm very surprised about your numbers for the softwares in Europe ! I remember have seen a site which say PS3 reservations were really better than 360's reservations.
It says 3:1 in UK , 2:1 in Germany if I remember well. I have ask to my gameshop salesman, he told me : 128 for PS3 , 82 for 360 (I live in France). It means 1,5:1 in France if my gameshop represents the France.
So I would say :
Europe :
Ps3 : 800k/150k (thanks to the bundle)
360 : 500k/120 k
US :
PS3 : 700k/110k
360 : 1300k/100k (I don't know if there is a bundle in US ? )
Total : PS3 : 1500k/270k (with Japan)
360 : 1800k/220k