Can you 'agree' with something in varying degrees?
I think it's perfectly okay to say "I agree with you up to a point" or I partly agree with you", so similarly you can agree with one statement more than another. You could agree with both statements, but one suits your own opinions better. For example: "Scotland should have more autonomy" and "Scotland should have independence". If I was a nationalist, I would probably agree with both statements, but I would certainly agree more with the second.