Noriko, get the white one! It's so gorgeous and the white is not as eye popping bags as the other one (unless you wanted that way) then the the other one. Post pics whit you carrying it when you get it. Also the black Fendi Hobo!!! Can't wait!
I think the details of the brown/black bag stands out more. It's a little more interesting looking than the all white IMO. Congrats on your new additions to your bag collection!
The problem with the brown/black is that it is in the print ads and it really pegs you as to when you bought it. You will probably be happier with the white bag given the climate/clothing where you live.