I'd go with the H&R's, and here's why.
A) The Bilstein PSS / PSS9 system is aimed at non M3 cars. The sway bar links need to connect to the lower control arm, and not the strut. This causes the loss of a mechanical advantage, and requires a bigger sway bar to do the same work.
B) Adjustable shock valving makes little sense unless you're planning on replacing springs at the same time. Shocks should ONLY come into play when the spring is in motion; Too stiffly valved a shock, and it can end up supporting too much of the weight of the car, instead of the spring. Adjustable shocks tends to make people WANT to adjust them, thinking they'll get more performance out of them. Tinkering will eventually just screw up how well the car performs, rather than having a system that is well setup to begin with.
I'm not really an asshole, I just play one on the Internet