Also, asking on the forum of one engine isn't going to get you a very objective view. Maybe a forum like GameDev might give you a good rundown of all the available engines.
In my opinion, Irrlicht is the best engine! Especially since it's awesome SPEED! My computer can run games, so I have to play Half-Life 2 on my brother's computer, but Irrlicht actually runs! And @ around 200 something FPS on my windoze!!! Only thing I dont like about it: Irrlicht's physics, and lack of network play. But this is np, tutorials and the community already took care of that