What is the best PS2 emulator for a PC?

What is the best PS2 emulator for a PC and do they work well?

PCSX2 0.9.6 is the best one out there. It works surprisingly well, I can play Kingdom Hearts, Kingdom Hearts 2, Disgaea, Disgaea 2, Phantom Brave, Final Fantasy X, X-2, XII, Grandia II, Grandia III, Suikoden III, Suikoden IV.This site here: http://www.pcsx2.net/compat.php?c=key has a compatibility list that tells you what games it works with.

Thanks TirithRR I will give it a try. I still need to get a ps2 iso to try it out. Thanks again.