I go for Chrome, especially when dealing with add-on programs.
Using different Operating Systems on two different continents, Chrome gets my vote (Mac and PC formats). Interestingly enough, on my iP6 I like iCab browser best.
I am trying to find a way to disable Safari, because it is not, like soooo many things apple, a cross-platform app, whereas Chrome is available on all, as far as I know, including Chromebooks.