MS Office for Mac isn't developed by Apple, so I don't know who you'd have to talk to about those missing features, but as for accessing the Application menus I would say that Apple and MS are about even, since much of that relies on the 3rd party devo. MS doesn't make that much good standard software with their OS, so when comparing iPhoto and such it's a bit hard but most of the menu options can be accessed from the keyboard.
On the other hand, applications like Avid Express and Photoshop can have their keyboard shortcuts managed and changed by the user and you get far more use out of the apps from Mac OS X who doesn't make useless shortcuts like "alt - shift - numlock" which turns the mouse buttons off 😕 and why would I need this, and why is it interfering with my professional work?
I never understood Alt - F4 to close a window or app, even when I was a Windows users. It was just a bit odd. Mac OS X puts most of it's shortcuts under the "command" key or some variation of the command key which makes it easier to discover them and access them... to me anyway. You can get special characters via a shortcut in MacOS X, but I rarely to that if at all. Maybe I am thinking of the shortcut to bring up the palette for special characters?
Now, I don't know if Windows has shortcuts for making quit shortcuts without having to right click, and press "make shortcut" or something. I have yet to find a shortcut in Windows for starting a NetBoot, Safe Mode, or FireWire target disk mode. Where is the shortcut for screen capture, or selected screen capture, or to put the machine to sleep without a word?