I use Rockmelt, which is a basically a facebook oriented version of Chrome. Its pretty awesome, I recommend checking it out
I used to use Safari (on PC), but got fed-up with all the crashes. I was already using Chrome to watch Netflix, so I started using that for everything instead, and haven't looked back since. BTW, Rockmelt does seem pretty neat, I've had a couple friends recommend it to me. Might have to give it a go some time.
Firefox! Love the add-ons, personas etc IE occasionally for um....stuff with the 'delete browser history on exit' box ticked Safari on my phone.
Firefox, I like the features it has, the usability, resource friendliness. Chrome is to basic, has some memory leakage issues (from what people have told me, never used it enough to really examine it). Opera is too heavy in terms of memory and CPU usage, plug-in container has memory leakage issues and uses a lot of CPU.
In order: Internet Explorer Firefox 3 Safari Firefox 3 Rockmelt Safari Firefox 3 Firefox 4 Beta Firefox 4 Chromeeee!!!!! (my favorite so far XD) However, in school on Macs, Firefox (when they have it) or Safari, or on Windows, Firefox (again, when they have it) or Internet Explorer (blegh)
I use Google Chrome for almost everything, but I'm forced to use Firefox for my schoolwork because for some reason Blackboard makes Chrome crash.
Firefox ftw. I occasionally use Opera. I direct non-friends (i.e. Family) on to Internet Explorer so they don't discover any 'undesirable' things.
Firefox. I like the extensibility and customization. I've tried Chrome, but keep going back to FF for some reason.
I prefer to use chrome because of the basic look it has and because it seems like such a nice design to me haha