I'm using the numbers that make the most sense, which would be consolidated and summarized numbers that take things like park factors, the makeups of particular pitching staffs, etc. and other such things out of the equation.
BL's getting down to a too granular level. I don't think you can draw any meaningful conclusions from that level of finite detail. You need to summarize it and look at it at a higher level.
It would be like, for example, taking two players who have similar rate stats in some specific category and comparing them to draw some sort of conclusion, only to find out that the two players are Mike Trout and Mario Mendoza.