The ratings in the newer version should be more like this.
Title Bout Championship Boxing Screens for PC at GameSpot
I think the greater the amount you have in terms of numbers for each of the catergories the more realistic the simulation will be, because at the moment i currently have 1652 heavyweights in my uni and as you can imagine it makes rating fighters more harder and results less accurate because there are not enough numbers per category to work around.