For me, Summit County is where to go during the winter for all of what you want. 4 Ski resorts, the Blue River tailwater stays ice free all year for 1-2 miles and it is right behind some of the best outlet malls in the state. let the fam shop while you sight fish in the low flows for some large trout, they can watch from the foot bridge. you can also head up to the colorado river if it is ice free.
http://www.fishcolorado.com