Netty on 26 September 2015
Definitely the original Xbox. The hardware (CPU, GPU, RAM, built in hard drive, built in ethernet port) was significantly more advanced than PS2 and Gamecube, so it typically had the best looking version of cross platform games. It also had a lot interesting PC games ported to it. Not to mention some great Sega exclusives and the original Halo. Oh yeah, and Xbox Live, which at the time was a pretty groundbreaking service to have on a console.
People tend to not think much of this system since it had a pretty short life and overall didn't have a lot of really memorable games to call its own. And of course the system and its original controller were kind of ugly.
