IMO , the USP Compact has without a doubt, the best ergonomics and most comfortable fit of any pistol on the market today. Even now with all of the newer designs coming out. The P2000 is comfortable; however, lacks the good, chunky feel of the Compact. Also, I’ve never been too big on being confined to one mode of fire, S/A - D/A. I enjoy the “cocked and locked” capability that the USP series offers as well as the ability to decock at my disposal. Plus, look on the bright side, you’ll save some $$$ with the Compact, as well…
Have owned both in 9mm. The P2000 by far feels much better in my hand compared to the USPc.
However, thats why Baskin-Robbins has over 31 flavors. Try both and see what you think.
I have had a 9mm P2000, LEM version with the spring kit that lightens trigger pull to about 5 pounds for several months now. Very, VERY happy with it. The interchangeable backstrap was also important to me; most ergo pistol I have ever owned. This from a 1911-aholic.
Stay safe.