Seeking an alternative to the big browsers

Can anyone recommend any alternative web-browsers to the Big Three of Safari, Google Chrome and Firefox?

I just want to try something new, because I'm not completely happy with the performance of those three. Maybe there's something better out there that I'm not aware of yet. I need your advice.

Opera

is the next biggest after the main lot

Opera also has a mobile version, the idea of Opera is to load all of the HTML and files before it displays anything, so it loads full web pages faster than most

The next important thing about Opera is that it has support from webmasters. If you look at Apple source code on their websites it mentions support for recgonsising opera as a browser, alongside the others

The problem with using other browsers is that some websites may not fully function. So it is safer an easier to go with one of these.

I'd say Omniweb by the Omnigroup.

OmniWeb

Probably the best alternative to the well known browsers.
Enjoy visual tabs and the ability to block ads.

Opera

Enjoy fast browsing on slow connections, with Opera Turbo.
Build-in support for Bittorrent.

Cruz

View multiple web pages simultaneously in sidebar split views.
Powerful userscript features.

iCab

Highly configurable browser.

Demeter

Cocoa- based browser that has the ability to connect to all of your favorite social networks. Based on Shiira.

Sunrise

Open source browser with multiple language support.
Website snapshot is build-in.

Stainless

A multi-process browser for OS X.