"Front Range" (basically Fort Collins down through Denver, Colorado Springs and Pueblo) is the population center. Lots of people, traffic, things to do; that's where the jobs are because that's where the people are. Then there is Grand Junction on the western slope.
If you live on the front range, pheasant hunting will be two to three hours away no matter where you reside. Most years it's worth it though. There is good fishing in front range lakes/reservoirs (walleye, bass, catfish, wipers, some panfish). For fly fishing you'll have to go to the mountains and things are closer if you live north of Denver vs south of Denver. But much is 2+ hours from Colorado Springs. There is a lot of great hunting and fishing - just have to be willing to drive a bit.
Also, the southern half of the state is dryer than the north half. It's hard to grow lawn grass in Colorado Springs, easier in Denver and north. Just hope you're not another liberal moving out here for the weed....