The desk
The best part is the extra depth. My monitor sits a comfortable arm's length away, leaving plenty of room in front of the keyboard for my hands, a notebook, and my coffee. Having that physical space is crucial for me since I'm always jotting things down, and I always need room for my two daily cups of coffee.
The rule for the surface is simple. If something can live under the desk, it lives under the desk. Especially cables... So I can put them there under the desk, like the Xbox, MacBook, sound card, and more.