UK has a very useful method for weighting OPS toward OBP, i can't remember what the exact weight is, though. Usually, you'll see ((1.6*OBP)+SLG) to get an adjusted value. I forget where it was mentioned but someone had mentioned OBP was undervaled 3 times its present value, which is nuts. Every stat has value, where and when to apply it adds less or more value. The more you know, the better off you'll be, as it's more like a puzzle and each stat is a piece of that puzzle rather than a beauty competition looking for the most attractive stat. I try and look for both sides of the equation, not only analyzing how well a player has done as far as his numbers, but what does he do physically that got him to that point.