Your take on the roads is spot on, at least from the sections that I have been on. Ohio side is 2-4 lane, relatively flat, 55 mph with the occassional 35 mph town to cruise through. WV side is mostly 2 lane following the contours of the hills next to the river at 45 mph, occassionally passing through towns at 25-35 mph. Ohio side seems to have the hills set back from the river, while WV seems to have the hills right up to the river's edge.
(Hi, Dave