I voted for Firefox. And I shall tell you exactly why, and how I came to this decision. I take a slightly different approach in that I do not think spouting a list of features is a great way to explain why one is preferable to another.
I was a happy IE user for many years, when my brother recommended Mozilla Firebird (as it was then known). I gave it a try for about 30 minutes. I didn't like it. I removed it from my computer, and went back to IE.
I later read a column in a computer magazine, whereby the reporter mentioned he was using a new browser called Firebird. Having seen two recommendations for it, I decided to give it another go
Its been on my system ever since. What I had failed to do the first time, was use it for a long enough period of time. The first time I tried it, all 30 minutes told me, was that it was different to IE in many ways. I didn't like change, so I didn't give it a fair chance.
I also tried out Opera and Avant. I gave both of these a chance to impress me. Both of them are excellent browsers, and I understand why they both have a loyal following.
But they were not for me. Why I prefer Firefox isn't important. The fact is, I gave each of them a fair chance to impress. And I made my choice.
I did the same thing when I grew tired of WS_FTP. I tried out several programs, and settled upon FlashFXP which I then bought.
I think a much more productive thread would be, what browser alternatives are there? You should all then be able to try them out, and decide for yourselves which is better for you. Whether it be Opera, Avant, Firefox, or even IE, at least then you will be well informed!
Rant over