Maybe I´m just too stupid, but the “press the button and see the result” thing is very disappointing for me in blender. There are too many buttons that do nothing if you haven´t pressed another button first and there are many magical commands where only a keyboardshortcut is available (and necessary, if you know it).
By the way, I don´t have only one favorite way of gathering info. I use the manual AND the tutorials AND the knowledgebase AND the questions and answers. So I´d like to check more than one point in my vote. But Q&A is the funniest way, because it includes communicating.