I don't know about Wolf Creek pass but I see the smilies, so....
I start out in Janesville, WI. I haven't driven 70 through Colorado since I was a trainee with a load of feathers about 13 years ago. I've always since avoided it like the plague. I can't remember if it's as bad as I thought.
I was looking at it, I may be able to shave some miles cutting through KS on the two lanes. Without that, though, it's the I70 mountains or it's about an extra 150 miles, not sure which is worse.