Find a pair that best fits your face. Spherical goggles tend to be larger, but have a greater point of view. Cylindrical goggles are trending again for next season, but have a smaller fit and have a smaller field of view. For a good in-between goggle that has a medium fit, but the lens is half spherical, half cylindrical lens, get a pair of Spy Marshalls or a pair of Electric EG2.5 goggles. Oakley Canopys serve good as a spherical goggle. For a pair of cylindrical, get a pair of Electric EGB2, Electric EG5, or a pair of Oakley O-Frame.
Also, anti-fog is key for those snowy days so that your lenses don't fog up and you'll end up running into the lodge on occasion. I used a pair of Scott Fix goggles this past season, although they didn't have any anti-fog, there were a lot of vents to vent out the fog. Also, they were spherical so I had a great field of view.