If you were doing Agile (and therefore had a reasonable metric of the relative size of each requirement), then a better metric might be your personal "velocity"

If you were doing Agile (and therefore had a reasonable metric of the relative size of each requirement), then a better metric might be your personal "velocity" of completed user stories, divided by the estimate amount. I think a really cool metric would be who has the fewest lines of code per completed user story.