Have the idea that this poll tells more about the kind of work done than being a measure of 'better' app switcher. While I have maybe 15 apps open, i only keep windows open for maybe three or four involved in a current job. I have enough area among screens to keep current job windows open. Sometimes one app may have multiple windows, but that's another problem. However someone else who does different work would use a different approach, and different app switching.

Exactly, sometimes when I have switch between various apps constantly, I click in open windows. Otherwise, I usually hide 80% of my running apps with open windows and then use the Dock to switch. For a couple of apps I use keyboard shortcuts, mainly for stuff I switch in and out quickly.

Using open windows and the Dock allows me to use my spacial memory, which does not work with Cmd-Tab, where the order changes constantly.