As you know, Mark, I have always maintained (most strongly in a
meeting with you on May 13th last year) that the menu should not
contain System Settings items at all.
Presenting system settings, software updates, and session commands in
a single interface element might make sense if it was branded as an
"Ubuntu" menu, like they are presented in the Windows-branded Start
menu and the Mac's Apple menu. (If that happened, though, the Dash
home button would need different branding to avoid clashing. An
alternative would be to embed the functions into the Dash home screen
itself -- as I also suggested at that meeting -- though that would
require the Ubuntu button to be visible more often than the launcher
currently is.) But I don't think such a varied collection of functions
could make sense with any other branding. Users can't be expected to
predict that a particular menu contains software updates but not
software search, attached scanners but not attached disks.
The vacillation since about what the menu's title should be -- first
power-cog, then power icon with cog overlay, and now power-cog again
- -- is a symptom of the problem I described then. The icon is trying to
communicate the incommunicable.
Since you required System Settings items in the menu, though, John Lea
chose Displays, Startup Applications, and Printing as his guess of
which panels were most used, and I didn't feel like debating that.
(Soon afterwards, Printing was subsumed by Printers in the "Attached
Devices" section.)