I'll be spending several days in both New Hampshire and Vermont before going up to Quebec. I love mountaintop views but will be traveling with someone who doesn't like to hike, so one thing I'd like to do is take one of the tramways to a summit. Besides the Mt. Washington railway or road, I see trams at Cannon in the Whites, Killington and Mansfield in the Greens, as well as a few others. Any recommendations on which one(s) give the best views for the time and money? Do any of them have some nice, easy trails we could meander on after arriving at the top, versus just a lookout?