I use all of them, depends on what I am doing, what I am doing it with, and what I am doing it to.
Any method is fine, the main focus should be on understanding what is really happening when you sharpen. I know simple-thinkers and old shop-folk prefer the shamanistic approach of "do this this way or else" or "whatever works for you", but I believe it is a simple subject and anyone who wants to sharpen should learn the machanics of how it works.
I think when I first started I used more aggressive pressure. Now I start with moderate, as I think you should start at an appropriate grit, and work your way up, letting the stones do the work. (unless you're getting rid of a chip or doing some serious bevel modification)
I think too much pressure can lead to wobble....
I do lighten up with each progression, ending with feather-light back/ stropping strokes.
What I found out is that light pressure make me FEEL a lot more. It also gives a nice steady flow which I can control way better than when I press too hard.
I begin with 5lbs pressure when starting on a 400 and lighten up with each step.
No way. However I find myself wanting to see it closer. (Never say never)
The thing that's interesting to me is observing the edge after working with certain foods over a certain period of time. Then combine that with how it feels at the time. You can get a pretty good idea of the characteristics of the steel.
In the past I didn't have the time nor inclination to "study" my edges. I just got down to business. I must be getting old.