Of course, you may run into the ARG220 phenomenon where he (initially) stated that those who did not share his specific set of beliefs were not really Christian.
I think that you had better be prepared to have this issue remain unresolved (from the perspective that you may never be able to agree on the terms to define the conclusion).
This board is not nearly representative of the U.S. public, but there are an awful lot of Christians on this board. The only two I recall claiming a complete disbelief in evolution are ARG220 and vanillnice. (I have not seen an opinion on evolution from furt and I don’t remember a religious post from scutfargus.) Based on that horribly skewed poll, the ratio is between several hundred to 2 and several hundred to 4. Others may pop up in response to this post, but you are still stuck with an overwhelming ratio in one direction based on a wholly unrepresentative sample of the population.
I’d say find something else to discuss (like whether your different opinions on these matters are going to leave you very compatible for very long).
If you really want some sort of answers, see whether Gallup or any of his competitors have taken similar polls recently (e.g., in the wake of the Kansas Board of Ed.) and have posted them on a web site.
If you really, really have to have an answer, try the following sites:
with commentary in
(Short answer, depending on how you define your terms, you and she can both be right.)