Koni vs. Bilstein vs. ?

[986 Boxster]

I have both set ups. I have Koni Special Active with H&R Sport springs and I like them much better than the Bilstein B8`s with Eibach Pro-Kit springs. To me, the ride of the Special Active is much more smother over uneven pavement, and there's no body roll compared to the B8`s. Your alignment also has a bit to do with the handling.
Read up on both and see what you like or don`t like. Remember, your the one that has to make the final decision , GL.
Here`s some info on the Konis
https://www.koni.com/en-US/Cars/Technology/ACTIVE_Technology/