I just ordered a 2013 Raptor SCrew. I can't speak specifically to the Raptor, but I currently drive a Lincoln Mark LT (Lincoln's version of the F150 SCrew). My wife drives a Jeep Wrangler Unlimited. I also live in Wisconsin where we get plenty of snow.
Snow
The Ford does way better in the snow than the Jeep. The reason....weight. The lighter weight Jeep tends to slip and slide much more than my sure footed Ford. Don't get me wrong...the Jeep still does well. Just not as well as my Ford.
(I would think the Raptor would be even better as it's heavier than my Mark LT)
SCab vs SCrew
I have a four year old. The SCrew is way better for getting her in/out and making sure she has room. Furthermore, you'll like the extra space for carrying cargo and stuff you wouldn't feel comfortable putting in the pickup bed. This is especially true on family trips, etc.
Lastly, the ride quality will be much better in the Raptor due to the longer wheel base. Honestly, I would never think of taking a 4 hour driving trip in my wife's Jeep Unlimited....way too rough.
Just my $0.02