I have Uranometria 1 (south of dec+6) and Herald-Bobroff .
U2 is better than U1 because the adjacent pages in U1 do not match.
The labels in HB are sometimes a long way from the object but it is great for the LMC & SMC.
The Millenium Star Atlas has less DSO than Uranometria.
See
http://www.gaherty.ca/rogers/Uranometria.htm
"Rather than repeat their 1987 efforts, the editors of the new 2001 edition of
Uranometria (which I’ll call "
Uranometria2") have absorbed the best ideas of their competitors and responded by producing something almost entirely new. Instead of a single set of 473 one-page charts, all the same scale and arranged counterintuitively by increasing right ascension, they have gone to a smaller number of 220 two-page charts, arranged by decreasing right ascension, so that the sky continues from the right side of one chart onto the left side of the next. They have supplemented these 220 basic charts with a 22-page mini-atlas at the front of each volume, plus 26 larger scale charts for areas where objects are too dense to plot on the scale of the main charts. This is a compromise between the 1548 uniform scale charts of
Millennium and the six different scales found in
Herald-Bobroff. Finally, they have beaten every other atlas out in the "faint fuzzy" sweepstakes, by including three times as many deep sky objects as any previous atlas."
Only trouble is it is so huge. 
I leave it open in my patio, then 10 metres to the scope, then back to the atlas, stuff up my night vision, lose the star I was looking for........
........
