I prefer the PT by a mile. The ANS is, to me, way too dark and Ive never been able to get a useble tone out of it. Ive had it in two basswood guitars and above the 12th fret on the top two strings, in a band mix, I cant even hear the notes. Maybe that's just how I set my amps up - I prefer a slightly darker, "browner" bridge tone and a brighter neck tone.
So...between those two Id definitely choose Pro Track.