I have used both and vastly prefer the smoker. Much better flavor and I can fit a lot more volume into my smoker. Also, with my smoker, I can get the internal temp of the meat to the right point, then turn it down. With the dehydrator, I had to first get the meat up to temp in the oven, then transfer to the dehydrator (total PITA). The only issue I run into with the smoker is it doesn't totally dry the meat, which for me, gives it a better texture, but I end up having to put that jerky into the freezer for keeping, and then I put it in the fridge if I am going to take a few days to eat a batch. Otherwise it will mold. Dehydrator ends up with something a bit more shelf-stable, if that matters to you.