I stitched together my AT hike with no devotion to direction. In the end I think it was almost 50-50 nobo-sobo.
Doing my last 600 miles sobo, I was surprised at the dearth of other long-distance hikers. It was a very solitary hike. No sobos passed me for the first 300 miles, then two thru's passed me in SNP (we leapfrogged for a few days) and then no more. On the other hand, I met a dozen or so nobo section hikers and late thru's.
Which makes me think section hikers lean nobo, just like thru-hikers. Ya think? Or too small a sample to say?