Stenzek who created the duckstation emulator moved over to PCSX2 and the updates from him and others have made that emulator really impressive in my humble opinion. It just seems a bit odd to make a comparison like this. Is there something i'm missing as to why you would compare either?
Its basically changelog notes with each update to the emulator ( usually daily ) and has been very active in recent years. You can also find a wealth of information and upates of various computer and console emulators on reddit r/emulation and that'll have what i think you are looking for.
