I'm relatively old now (and married) so I don't go out chasing tail anymore in Breck, so I don't have a ton of advice there, but I'd hit up Eric's Downstairs for a fun place to hang out. I'm also a fan of Breck Brewery - definitely get some growlers to take back to your hotel. And when you are hungover the next morning and need a good breakfast go to the Blue Moose (but expect to wait in line). And while I hate the place, there will probably be tons of snow bunnies at Crepes ala cart on main street - women seem to love that place for some odd reason.
Have fun; be safe; and thanks for coming to Colorado!
2010 E90 335i Black Sapphire
COBB/PTF proTUNE/Alpina/BMS Drop-in/PSS/Blizzak
Best Stock 1/4 time = 14.1 @ 99.4 at Bandimere Speedway (DA = 7,400ft ASL; 13.5 @ 103 corrected)