I throw both. Well, correction; I used to throw both. Now I just bag a Starfire.
IMO - The PD and Starfire do share the same numbers, but I find the Starfire to be more stable. Though, I know of certain PD runs that would challenge that fact, but who wants to hunt those down. I chose the path of least resistance, and stuck with the Starfire. For me, the PD and Starfire had similar flights, at the beginning of their flight. But the end (or fade) is different; the PD has a "forward fade" quality, where as the Starfire is all like "Hey, I'm going to go left now! I love going left!" (RHBH) when it starts to fade. In the end, the PD goes a little farther than my Starfire, but not by much, and I feel like the Starfire is more reliable in most situations.