So, has anyone had personal experience with more than one type of dryer? It seems like you have a) convection dryers, b) radiant dryers, and c) direct sun dryers. If so, I'd like to know which one you prefer.
I haven't seen a direct comparison either but I haven't exhaustively looked for one. I believe the differences in how well they work depend on your climate. A dehydrator that works well in New Mexico may not do so well in Oregon.