Anschutz is near the X, I'd recommend living somewhere in the "circle"
edit: me personally, when I used to work in Stapleton, I loved living in Congress Park. It's close enough to both downtown and Stapleton (Anschutz) that a bike commute is completely feasible, or if you drive you pretty much never get stuck in traffic because you're on the city one-ways like 13th/14th 6th/8th travelling just a few miles. Instead of all the apartment building like in Cap Hill, Congress Park has much more single family dwellings and a lot of trees. Stretches along Hale/Mayfair also if you wanna be closer to work.