The argument, however, doesn't boil down to "single vs walk". That's a simplistic way of looking at it. The debate is BA vs OBP and it's a no-contest in terms of measuring correlation regarding to run-scoring. Batting average, by itself, is a terrible tool to evaluate hitter productivity, since all it tells you is the amount of hits someone got over a certain number of at-bats. It doesn't tell you how many times he got on base overall, the type of hit, or if it did in any way lead to run-scoring. It's just a very incomplete statistic.
RJ, Bell, can you either of you give me a sound argument where batting average is a better measure of overall hitter productivity than any other decent measurement ? Because i don't see it.