I am not sure I want to comment on this one or present my own list, because I am still at a place where my musical taste is still expendable as a sponge because I got a fairly late exposure to "good" music (outside of Classical, on which I was raised). I'm open to a lot of stuff, but a large proportion of the music that is new to me is not new at all. So, Best of 2007 has a different definition for me than it does for you.
That said, I'd say the most quality record this year was made by (ta da! drum roll please!) Prince. And no, I am not a lifetime Prince fan. I've only been exposed to primarily his Greates Hits. Oh yeah - that and Joss Stone. Love the new record.
I'm still very much in 2006, as far as my "new music" goes, which was a year brimming at the seams with great stuff. Kooks, Amy Winehouse, James Morrison, Fratellis, Fallout Boy (or is that 2007?), Lily Allen, John Mayer.
"Newest" thing I've got is Ravi Shankar from 1967 and a live George Harrison disk
