Firefox 3 has taken the honour of taking 21st place in PC World’s: The 100 Best Products of 2008 Award. Unlike Thunderbird, the review for Firefox 3 is a little more current, even if it is for Beta 1 (release November 2007).
On an interesting side note, Flock took 6th place and was the top in the browser category. Flock is based off of Firefox 2 with the integration of several social networking and other web services.
News Source: Mozilla Links
I gotta say Flock is making more waves than ever. :)