I've been using Chrome as my main browser for a while for a couple of reasons. For one, I have a Chromebook, and the user experience between devices is rock solid. Secondly, I used to use Opera until they gave up on their engine and basically just wrapped around Chrome's engine -- except they took out all of the features that made Opera, well... Opera. So now Opera is just like a gimped version of Chrome. Lastly, Chrome does have excellent performance. In Firefox, I frequently get UI hangs. If I open a new tab that's loading and try to go back to scrolling a web page or even selecting another tab, the damn thing freezes.
But jesus fucking christ Chrome's using 3gb of ram. Granted, I do have 22 tabs open, but this is just insane.
I have Visual Studio, Eclipse, and an Android emulator running and combined they use less ram than Chrome. Dafuck.
TL;DR IE is the best browser.