I used to use netscape because of the built in email service. I tried Camino for a while, but moved to Safari because it supports the Inquisitor (Safari users, check out www.inquisitorx.com) function, without which I now would shrivel and die in a hole somewhere.
In my opinion I would have to say Firefox 3 out of all of them. After the recent download of Firefox 3 my internet has been more faster and effiecient at doing what it is supposed to do.
I use Internet Explorer (even through not many people use it). I like my current web browser because for me it's always fast since I got a new computer built for me, with a dual coreProcessor and other fancy things like that. (Sightly off-topic)
Well i use alot of them .. PC i use safari and firefox and inter explorer for my msn emails .. And i use opera for my wii internet =]
I'm pretty sure the new Xbox 360 dashboard they are coming out with will be able to browse the internet. I'm not completely sure though. They're might be some dashboard previews on YouTube.
I have been using Firefox for a few years now, and have just DLed Google Chrome. Although Google Chrome is faster, I can hardly browse the internet without my Firefox extentions, so I will wait for the full version of Chrome with extentions (if they do that), before I make it my primary web browser.
I just like safari. I know everyone thinks firefox is better, but frankly, this just works for me. And that is what is important.