i only use my axe fx II for effects so this is also the way that i compare actual pedals to the modeled pedals. a few of them are right on and some of them need to be re-workedI find the drives in the axe not that great when comparing with real pedals. The way i tested them was I created a patch with only drives then out of the axe into my fender amp. I put my real pedals in front of the axe and A/B them. You can get some decent sounds but they do not sound or react like the real pedal to me.
Perhaps there is a better way to compare them?