Wow, that riverwrangler guy doesn't know what the hell he's talking about.
Assuming you use proper technique with all of these strokes, I think this is mostly a preference thing... but I'll add a few thoughts. If I need to take a turning stroke before a forward stroke, then I use a bow draw. If I need to take a turning stroke after a forward stroke, then I use a stern draw. If I'm catching eddies, I use a dufek, which IMO is very different than a bow draw. I try to only use a rudder when I need to slow down, which is pretty rare, but we all get lazy. I love the stationary stern draw for big water eddy peel outs, or peel outs into ferry's. And if I'm running something really twisty and cool then I think it's pretty sick to do the bow draw, forward stroke, stern draw combo.
As to what I prefer... bow draw bitches!
It's not as powerful, but it links up with a forward stroke nicely, requires less torso rotation (keeping you stable in funky spots), and keeps your paddle in front of your hips for more forward strokes, since technically, you shouldn't need to take any turning strokes if you lean correctly.
Exception to the Rule: When I paddle a longer boat, say over 10 feet, I have a hard time getting enough power out of the bow draw, and thus rely on the stern draw more.