I am a bit late here, but January is probably the best choice for Colorado, Breck can be a little crowded that time of the year, but if you know your way around there are ways to avoid crowds. About lodging I am sure you can fit more than they state in the info, just be careful some of this lodges got people who really enforce those limits.
To be honest with you, breck would be my last choice of Summit county, mostly because of the crowds and the mountain layout. There's better snow in other resorts around and in my opinion better terrain too. Just thought of mentioning that. Oh and it doesn't get better than VAIL!!!, of course it's $$$, but there are ways around it as long as you are willing to travel a bit.