The P363 will be more accurate. The 200Hz-10kHs on-axis FR on the P363 will be like +/- 2.5dB, while the Klipsch will be like +/- 4dB. The off-axis FR on the P363 will also be flatter and smoother than the Klipsch.
This doesn't guarantee you will Prefer the sound of the P363 over the RF-82.
Preference and Sound Accuracy are 2 different things.
Some people prefer the sound of less accurate speakers like Wilson Audio, Zu Audio, Klipsch, DefTech, & B&W over more accurate speakers. That's just the way it is. And that is just fine.
The Klipsch will play louder for sure. So for loud parties, the Klipsch will be more suited.