A couple of quick questions.
Do you count factors gained from magic items when calculating a creatures CR? (ie You have an Amulet of Nat. Armor so +.1 CR) Or is this already factored in by the Equipment factor?
I would think that is not because under Ability Scores it says that you do not count ability increases due to magic items for CR increases (implying that you would count magic item abilities in other factors). Plus it is logical that some wealth should increase your CR and some should not (a million gp wont help you but magic items will).
If that is the case why count most equipment anyway (sure a MW weapon, and armor would help some but you would not need to factor in magic items, gold, or property)?
Also how would this system work for a character with the Vow of Poverty feat in the Book of Exalted Deeds? You rate all feats the same and this one is CLEARLY better that most. At level one you give up wealth and items (-.02), get a bonus feat (+.2), and +4 exalted bonus to ac (+.5).
So if all feats are the same and cost .2 CR then .2 = .5