Hello pjv,
I agree with you said. But, you shouldn't make the decision based on the location since you are going for a masters you won't be living there for too long. But whatever project/program you decide to do now will be stuck on your resume forever.
I have friends that went to Davis and they say it's not all that bad, a little boring, but you can always drive for an hour and go to SF or somewhere else for fun.
Davis has a very good reputation in Food Science, lots of published material, lots of funding.
I don't know much about Cornell, but it does sound a lot cooler to say that you went to Cornell than Davis ;-)
May I ask where did you get your undergrad?
I didn't contact any professors, how did you do it?
Thanks!