What's the most effect method of Pillaring in Minecraft?

[Benrune]

I gave it a little thought tonight. And honestly on block exchange rates I couldn't think of any.
I gave it some general thinking and couldn't think of a recipe that gives you the greatest advantage.

If any of you have thoughts be sure to post!

 

[Jivvi]

I gave it a little thought tonight. And honestly on block exchange rates I couldn't think of any.
I gave it some general thinking and couldn't think of a recipe that gives you the greatest advantage.

If any of you have thoughts be sure to post!

Probably ladders if you can go up the side of something, I guess.

 

[Dess]

I alternate between slabs