On the site for that video, they show all 5 browsersLoginer wrote:
Also, not even Google likes Opera.
http://www.whatbrowser.org/en/browser/
It's just that they couldn't fit them all in there, and it is true that firefox and ie are the most used browsers that everyone recognizes.
I still have all 5 browsers installed, and I sometimes switch for FF for some extensions, but I've almost fully migrated to Chrome now. As for the looks, it all depends on your tastes. I personally enjoy Chrome's minimal interface, and if you look at my firefox, it also has quite a minimal look:
http://i.imgur.com/B2QiF.png