Best game Engines

I don't know if it's the best, but the most interesting and innovative engine I can think of is the euphoria engine. It blends ragdoll physics and gives them muscles and a nervous system with programmed behaviors to make them act like real people. Pretty much any engine that uses a physics system I really like for the realistic reactions between things.

The Blender Game Engine is a very nice engine because it is lightweight and integrates directly with Blender 3D, and accepts datablocks as well as direct Python programming.

I have two lists of game engines that I like. I just like them. I am not a programmer or developer, just a gamer.

The Best Big Name Game Engines:

1. RAGE Engine (Rockstar Presents Table Tennis, GTA IV + Episodes, Midnight Club: Los Angeles, Red Dead Redemption, L.A. Noire)
2. CryENGINE (Far Cry, Crysis, Crysis Warhead, Crysis 2, Aion: Tower of Eternity)
3. Naughty Dog Game Engine (Uncharted: Drake's Fortune, Uncharted 2: Among Thieves)
4. The Dead Engine (Dead Space, Dante's Inferno)
5. Unreal Engine (Gears of War, Mass Effect, BioShock, Unreal Tournament, Deus Ex, GRAW, Red Steel, Borderlands, Brothers in Arms, Homefront, Mirror's Edge, Singularity, Rainbow Six: Vegas and a gazillion more)
6. Avalanche Engine (Just Cause, Just Cause 2, The Hunter)
7. IW Engine (Call of Duty 2, Call of Duty: Modern Warfare, Call of Duty: World at War, Quantum of Solace, Modern Warfare 2)
8. Anvil Engine (Assassin's Creed, Prince of Persia, Shaun White Snowboarding, Assassin's Creed II)
9. EGO Engine (DiRT, GRiD, Operation Flashpoint: Dragon Rising, DiRT 2, F1 2009, F1 2010)
10. Geo-Mod Engine (Red Faction: Guerrilla)

The Best Free and Small Fee Game Engines:

1. Irrlicht - http://irrlicht.sourceforge.net
2. Ogre3d - http://www.ogre3d.org
3. Genesis 3D - http://www.genesis3d.com
4. UNITY 3D - http://unity3d.com/
5. Unreal Development Kit - http://www.udk.com/
6. Panda 3D - http://www.panda3d.org/
7. SIO2 Engine - http://www.sio2interactive.com
8. 3Impact - http://www.3impact.com
9. Cipher Game Engine - http://www.cipherengine.com/
10. C4 Engine - http://www.terathon.com/c4engine/
11. Truevision3D - http://www.truevision3d.com/

Personaly I just use C++ and make raw game engines. It is not that hard to make a good one from scratch if you spend enough time on it. But engine wise, I would have to say: CRYENGINE 3!!!!!!