<<"I haven't been able to choose a town in Interlaken yet, given that we would be spending our new years and the most days there, which village would you recommend out of the three?">>
Your choice may be dictated by room availability, but a multiday stay often has a better chance in holiday season.
I like Wengen. Others like Mürren. Others like Grindelwald. Others like Lauterbrunnen.
Wengen and Mürren are up on the mountainsides.
All are connected by good public transport; Lauterbrunne, Wengen and grindelwald are on the cograil train which passes over Kleine Scheidegg and has a branch to Jungfraujoch.
Mürren has a couple of connections to the the travel network and the cograil station at Lauterbrunnen either via Stechelberg or via Grütschalp.
Schilthorn is above Mürren and offers an alternative to Jungfraujoch, or a supplement..
Ski season starts in mid-December, and most lifts are operating then. There will be snow at higher elevations and many hiking trails will be closed for hiking. Some may be accessible; don't know which.
Look at a map -
map.geo.admin.ch/?X=160720.00&Y=638120.0 0&zoom=5&topic=swissto po&lang=en&bgLayer=ch. swisstopo.pixelkarte-farbe&layers=ch.swisst opo.swissimage-product
A fan of Wengen has posted this guide:
Enter Wengen in the main search box for this website on the home page, and you will find a lot of posts about choosing one village or another.
This may help with hotels.
Arno and Annika - the forum moderators - know that region well and might have a suggestion about a hotel.
Please let us/them know about the size of your party, and ages if there are any elderly people or very young people.
It can help with suggestions and hotels.