I have done both. Our last 4 round trips have been by TC. over the 52 years I have been driving the Alaska hwy I have never felt the vehicle I was driving had much to do with the pleasure I received from the trip.
The TC is more maneuverable but the 5th wheel has more room of course. A person has to decide what they plan to do and what type camper are they. We seldom spend more than a night or two in a spot, except for some of the more urban area, i.e., Whitehorse, Fairbanks, Homer, etc. If the summer is a warm dry one, the TC is great as we are sitting around the campfire most nights, but if it is a cool wet summer, then the TC gets really small for the two of us. Plus there is no place very comfortable to sit in our TC but the 5er has a very comfortable sofa.
I usually recommend folks to take what they are comfortable driving. You will see every possible type and size of rig made, on the Alaska Hwy. Over the years I have made more trips in a Class c, but also have done it in a popup trailer, etc. Just never owned a TT or would have used that I am sure.
We are headed back north this summer, if all goes well and I am guessing the TC will be the choice. The same truck gets about 1 1/2 mpg better on diesel with the TC than it does with the trailer. We may take our 5th wheel, just not sure. We are finding as we get older, we are doing more stays in one place longer. So the 5er is better for those.
joe b.
Stuart Florida
Formerly of Colorado and Alaska
2016 Fleetwood Flair 31 B Class A w/bunks
www.picturetrail.com/jbpacooper
Alaska-Colorado and other Trips posted
"Without challenge, adventure is impossible".