I grew up just north of Boulder, Colorado, so I’m biased, but I believe it to be one of the country’s most unique and beautiful cities. Some might brag about its stellar college football team, the Colorado Buffaloes, but you can also brag about the speed of its internet connections relative to the rest of the state.If you live in Boulder (or plan to move there), you have a handful of options, but the two most widely available internet service providers are Xfinity and CenturyLink. CNET’s pick for the best…