The new Alienware 15 is the most affordable gaming laptop in the family, but how does it compare to the next best Alienware 16 Aurora? Let's find out.Two sleek laptops with an alien logo are set against a cosmic backdrop of stars and galaxies, conveying a futuristic and high-tech feel.Dell's new Alienware 15 arrives as a more affordable alternative to the 16/16X Aurora and Area-51 gaming laptops.