Hansons totally flips the equation. While Pfitz really focuses on long runs and occasional long-hard tempos at 15k-hm pace with limited/non-existent intervals, the Hansons keep the intervals and limit the long runs but rely on the hard density of workouts. They will have you doing a 8-12 mile runs at marathon pace pretty much every week. You don't do as long a long runs so it sort of pans out.
I felt like Hansons made it a zero-sum game for me. I was either going to run really well or terribly. I ended up running terribly, but i was in a spot that could have led to a great time (for me). I felt much more prepared for a stiff and somewhat erratic pace and less prepared for the distance where as with Pfitz, i was going to run a solid effort no matter what happened. But i also don't think i was going to have a break through effort, just run more or less within my fitness.
I definitely recommend giving it a try and seeing what works for you and pfitz will create a great base for whatever marathon program you decide.
Hope that helps/makes sense.