The humbucker on the HS is wired in parallel so you can get the same sound as the H in the same mode.You also have single coil option for the humbucker like the H. What you get with the HS is 3 other tone options. My favorite is all 3 coils (position 3),and coils 2 and 3 (positon 4). The HS is the way to go.
But you don't get an option that is the same as the H in Series, right?