I'm tired of using OPS as an offensive value measure because weighting each equally is an ad-hoc decision with no basis in real value. I'm also unhappy with Runs Created, as it requires lots of obscure statistics and also uses ratios that seem empirical.
Thus, I have created an offensive value estimator called Runs Estimated which can be calculated with the three basic offensive ratios (Batting Average, On-base Percentage and Slugging) and is based on the reality that it takes 4 bases to score a run. It is a simpler calculation than Runs Created, but has a 98.7% correlation to it.
Have a look (http://www.ibhof.org/offenseCalc.html) and tell me what you think.

It seems to be pretty good.

Try estimating the top ten hitters in baseball, and we can tract this year and see if it works.