Would you rather drive a four lane divided highway, or a two lane curvy highway?

Before you just say the four lane let me tell you about it.
It’s a high mountain highway with steep grades, and can be very icy and snow covered most of the winter.
The two lane doesn’t have half as many long steep grades sees little snow, and is bare most of the winter.
So which do you choose?
Ever seen Highway through Hell?
The four lane is that highway.
The two lane is the TransCanada.