My Rankings :
- Chrome wins: Security, Ease of Use, Privacy, Reliability, and Performance
- Firefox wins: Developer Tools and my own special category of Interoperability (try running IE8 on linux).
- IE8 wins: Nothing really. IE8 is a big improvement for MS but it doesn't stand out in any area. I'm happy that they have finally started to adhere to standards instead of inventing their own and that they threw in some developer tools. I actually use IE8 on a daily basis and it's o.k. But it won't keep people from switching to Chrome or Firefox.