So I'm trying to figure out what the best strategy on this board would be.
The villages and the trashing are both very weak. Vacation seems too slow and unreliable here, so that leaves Snowy Village as the only other village. The problem with using Snowy Village is that it would nerf Magic Hat and Sleigh, which is the best draw. So I think you'd probably plan on using non-terminal draw (Magic Hats and Sleighs) with a single terminal. If I'm feeling bold, maybe I'd get one Snowy Village and try to play it after all my non-terminal draw.
So what should the single terminal be? Snowball fight is the only trashing, but the points from Tree would probably help your opponents more than the junking would hurt, same with Santa's Workshop. Grinch would probably be pretty good (especially with Tree points), but it seems like Visit would really be the strongest terminal, basically like taking a Possession turn. We would need a clarification on what happens if Relatives play Visit. Is it Relatives the whole way down? Because that might lead to a Duchy rush. Otherwise the Relative deck probably plays the same way, except the best terminal for the Relative to play is Grinch.
I think I'd open double Silver here on 4-3, or Visit-Socks on 5-2, and I'd sprinkle in a Duchy or two along with Sleigh and Magic Hat. I would probably need to start greening pretty soon after my deck is able to hit $8, since Provinces will start emptying very quickly after the Relative decks are able to hit $8.
