Unreal Engine 3 is a complete game development framework for next-generation consoles and DirectX9-equipped PCs, providing the vast array of core technologies, content creation tools, and support infrastructure required by top game developers.
The U3 Engine is the most commonly used engine for almost all the games that we play today in this generation, and it isn't too hard to see why.
The texture shading, the texture tessellation, lighting engine, high-resolution texture constraints, the superb Anti-aliasing quality, I could go on and on. It doesn't matter what anyone says about the engine, as it's always going to be most common used engine for next-gen games.
With games like Alliance of Valiant Arms, Gears of War, Blacklight: Tango Down, Unreal Tournament 2007, Bioshock, Borderlands, Mass Effect, and many more, the Unreal Engine 3 is an example of cutting-edge and unique, high-quality gaming art. . at its finest.
When used properly, the engine can make realistic art styles, and even smooth cell-shaded art styles. It is the finest and purest quality tech that we have today, and I recommend it.