Firefox all the way (closely followed by Chrome). I use a lot of add-ons on Firefox, some which are not on chrome so I stick with what I have. I also like Firefox's look slightly better than Chrome's. But I still love Chrome, Firefox ≥ Chrome.
Chrome is best. Has Incognito mode, where you can look at your favorite doujins, and they wont even know how you got there, since the history there un Incognito mode will be erased.
Safari, because my laptop is old and most newer versions of all of those other browsers lock up all the time on it. Firefox on my desktop PC, though I use my laptop more for Internet surfing.
I used chrome, used to be a firefox user, only upset for chrome atm is occasional spikes when i alt tab out of a GAME, and maybe history clearing <___< lol