PaHud Stats

[corny]

Hi everyone.
Which stats do you use in your omahagame? With use I mean to get reads on someone.
In holdem its quite easy to spot the fish but in omaha there are many styles that can be profitable. So I think just to use VPIP and PFR isn't the key here. I personally use the aggressionstats a lot but maybe I'm missing something.
So what do you use and why?