Named valedictorian - doesn't feel right? Help?!?

I was recently named valedictorian for this year and rather than feeling all proud and ecstatic about the achievement, I find myself wrestling with all this guilt and disappointment. It turns that out of all the 4 eighth grade cles, my homeroom ended up with 'easy' teachers in two of the subjects. While I don't intend on criticizing any of the teachers, we often got the easy way out in those cles. Those teachers barely gave us homework and tests (I should mention that we are in an accelerated program), and most us ped by with ridiculously high grades that we wouldn't earned if we had the other teachers. The other eighth graders ended up with more than twice as much as work as we did. At this point, I just feel as I really don't deserve that title and believe me if the other eighth graders had those teachers, their averages would have been so much greater than mine. It's getting to the point where I want to tell the teachers that someone else ought to be valedictorian, not me.