http://www.tomshardware.com/reviews/web-browser-performance-standard-html5,3013-16.html Interesting thing is that netflix works really well with firefox, kinda ok at safari and really sucks at Chrome. In my personal experience chrome memory usage increases a lot if you enable a few extensions. For same tabs chrome took 2.5x memory than Safari.
I've always tried to shy away from Safari for some reason (I think it's because everyone always says to use Chrome) but I just can't stop using it. I've tried every browser, and none feels as comfy as Safari does. Once they fix that AdBlock memory leak it will be much better as well. And once they introduced the two finger swipe for back and forth, I simply can't use another browser...
I'm all about Chrome Canary with a decent number of flags being used. The only thing I can think of right now that I don't like is the ugly yellow icon; but then again I think most icons are ugly and use CandyBar to change them all our to blacked-out versions. Chrome also has 3 finger back/forward, along with the swipe down to exposé all tabs.