Okay, now I've got a question...at $500 roughly, which is the better polymer gun? The G19, the P99, or the Springfield XD (formerly known as the HS2000)
Whichever one of the three you find to be the most comfortable.
All three are quality guns and it would be hard to go wrong with any of them.
That said, the XD can be had new for $400. And don't let the Gun Tests results cloud your thinking. It does say something about their integrity that they don't accept advertising. But their methodology is suspect at best. If I recall correctly, they didn't even use a Ransom Rest to test the HS. Also, this is the same publication that claimed the Makarov to be unreliable. With some truth to it, a friend once jokingly told me that the publication should be called "Group of Guys Getting Together to Shoot Guns Magazine".
On the other hand, if you go to the best source of opinion on any pistol -- the actual owners themselves -- you'll find that with few exceptions the HS2000/Springfield XD owners are tickled with the performance of their pistols. And they should be.
I refuse to own a firearm that is unreliable or inaccurate. My HS and my XD40 are neither. Of the more than fifty pistols I own or have owned, including plenty from the big name manufacturers, my HS and XD will hang with any of them and exceed many of them. There's no legitimate reason they can't be mentioned in the same breath as the Glock 19 or the Walther 99.
But again, with that said, the ultimate test is which particular pistol works best for you. I've never been able to get comfortable with the G19's grip. On the other hand, the Walther feels like it's an extension of my hand. As does the HS/XD.
I picked the one that works for me, and I recommend you do the same.
Take care. Marko