If you've read a PG essay and found yourself agreeing because you're gradually taken towards a conclusion yourself instead of having it preached to you, you'll know what I'm referring to.
Turns out there is a style for that.
I am no writing expert, but I feel PG's style is (intentional or otherwise) most akin to Classic Style as outlined in the book "Clear and Simple as the Truth" (overview from Robin Hanson of Overcoming Bias here: http://www.overcomingbias.com/2009/03/deceptive-writing-styl.... ).
Most telling excerpt: "Classic style is in its own view clear and simple as the truth. It adopts the stance that its purpose is presentation; its motive is disinterested truth. Successful presentation consists of aligning language with truth, and the test of this alignment is clarity and simplicity."
CaSatT homepage: http://www.classicprose.com/