Thanks for taking the time to summarize these atlases Jamie.
I'll add one item to your list that I think is not widely enough known:
E. Karkoschka's "The observer's sky atlas" is an outstanding,very
convenient hybrid atlas.
Small size (like a thin paperback book, easily fits in a larger
pocket of a jacket or many eyepiece cases).
Has main charts at the level of a mag 6 star atlas.
Has insets at the level of detail of SkyAtlas 2000 (limiting magnitude mag 9).
Excellent observing list of 250 double stars, 80 variables and
250 nonstellar objects (110 Messiers plus 140 best beyond Messier).
Very useful data and text notes in tables right next to every chart.
This includes lots of detailed information that you normally have to
look up somewhere else (distance in light years, absolute magnitude,
B-V values, surface brightness, position angles, orbits of variable
stars, max and min of variables etc).
Also very good introductory summaries of all objects in the catalog
that give a sense of both mean and extreme values of lots of physical
properties of different types of objects (what is average, biggest
and smallest, furthest and closest, brightest and faintest, bluest
and reddest for galaxies, globs, open clusters, planetaries, diffuse
nebula, stars etc).
I have found this a remarkably efficient and convenient small book,
with enough stars to find things easily, and enough data to suggest
interesting things to look for even in a relatively bright back yard
or with a small telescope. It's in my jacket all the time, and I
find I crack it open almost every observing session to check some
detail or other, refresh myself on the stars and objects in a
constellation, etc.
David Kingsley