Yahoo/AOL are the same company now (Oath, a subsidiary of Verizon if I'm not mistaken), so they're the same - similarly to how mail.com and GMX are effectively the same thing under different names, due to being owned by United Internet. (The former, oddly enough, doesn't have POP3/IMAP support, while the latter does.) Can certainly agree Gmail is aggravating to use and seemingly sends out an absurd number of promotional emails to the point it puts me off using it for anything half-serious whatsoever, as it's just going to get drowned in other crap.
I prefer the Office 2007 UI on Vista over 2010's personally but my main issue with it is how Publisher sticks out like a sore thumb. It's kinda clear around that point that they were attempting to phase that particular product out given it was virtually identical to the version included with the 2003 suite.
Also, good call for mentioning WINE. Given how the font-rendering is messy in 2007 from what I recall reading up, and how flaky Linux distros handle UI elements in general from time to time, I'm somewhat unsurprised you mentioned 2003. It would seem the most fitting alongside any other natively-built application.