Here's my take on the popularity of most vehicles. We all tend to like, buy, drive, restore, collect, appreciate and whatever other adjectives one cares to throw at it, the vehicles we grew up with. So if the vote here is towards AD models more than TF's...well that probably speaks to the age of the viewers and posters. There's lot's of us old farts who love our AD trucks. As we fade away I'm sure a new crop of TF lovers will emege to become the prominent parties.
What this doesn't take into account are those of us who just love trucks period. I'm one of those.