If this topic has been covered extensively in the past I apologize but I am posting this as I love maps and can sit for hours just looking at them and I always have them on trail. (I don't rely on them fancy GPS devices lol)
So question is what maps are your favorites and what do you use them for?

Myself on trail I always use the green trails maps when hiking in Washington can't beat it in my opinion.
Trip planing in Washington I like the maps they sell at the ranger stations way to big to be practical on the trail though.

I trip planned 2 hikes this summer with the National geographic trails illustrated maps and they worked fine for that it seems, I will be using them on trail as well this summer ( glacier, and black hills) and will report how well I like them.
Thanks for any input