Categorizing Players

OK, so in a thread the other day, somebody said something about categorizing players, TAG, loose/passive etc etc.

Whilst I did this already, I was wondering if I do it "efficiently" enough so to speak. I have been labeling fish green, TAG yellow, etc etc. I just wondered how people would tag villains with stats ( pre flop ) such as;

24/10
32/18
25/18

???

Also, is someone is passive pre-flop and aggressive post flop what would be the best way to label them?