I just got off of the Alaskan Highway yesterday. From Dawson Creek to Whitehorse the highway is in generally good condition with a few miles of dirt and gravel and the normal frost heaves. Pay attention to the signs and the frost heaves are not a big issue. The dirt and gravel areas are well marked and slowing down will prevent most damage. Unfortunately, the trucks coming the other direction do not seem to share that philosophy.
The biggest issue we had on the trip this year is the area between Edmonton and Dawson Creek. The road is in good condition, but is "washboarded" to the point that slowing down is the only option. I seem to remember that about 100 miles of it was a real pain, but after that it smoothed out and life was good again.
Gas stops are all open and RV parking along the highway is easy and plentiful. Boondocking is always easy, so take your pick.
Have a good time and enjoy the ride..the view is fantastic.
Living life on the Road