Hi Rachel,
I've never stayed at Loon - but it's about 1+ hours away from North Conway - if you find something in or around North Conway I think you'd be happier - more ski mountains, more activities, more restaurants, shopping, etc.
You said you were going in December? Generally, December is not as good for skiing as January, February or March but you may get lucky. This past winter we didn't have as much snow but the ski areas did well because they made snow whenever they could!
If you have any questions about the North Conway area please email me - I'd be happy to give you any information! We live about 1/2 mile from Storyland and own at the Grand Summit at Attitash/Bear Peak.
Deb