I prefer Dolphin and have used it for over a year now. And with the latest update your able to make an account and sync your bookmarks so you can use them with multiple devices or an easy way to restore if your a flashoholic like myself. Another nice option is the gestures and swiping left to right to access your bookmarks which can easily organized in folders.
Thanks for all the comments. I too find myself using the stock browser most often, but both firefox and dolphin have some very nice features.
Regarding speed what are your thoughts. I know that FF takes a while to boot up but once it is up it seems almost as quick as stock. Dolphin's interface is nice but it does not seem to be as fast. Maybe I just have to use it more.
Have you seen or do you know if anyone has done any testing?
X Scope is my preferred browser. It was updated a few months ago and they changed everything. I was too lazy to learn how to use it all over again, so I ripped the apk for the old version out of one of my old Nandroid backups and installed it on my E4GT.
I'm obsessed with browsers and I think I've tried every one. Aside from stock, I've decided to keep four others. When I need nothing but speed, I use Opera Mobile or Opera Mini. When I need deep and thorough browsing almost comparable to a PC, I use Skyfire. And when I need smooth and consistent video play, I use Maxthon. I don't think anyone should have just one browser on his or her phone.
My only complaint with opera is that it doesn't display the protocol (http, https, etc) i'm the address bar, there isn't an option for it in the about:config, and when copying a URL from the address bar it puts a space before the first character. These are all very little things and are only bothersome to regulars on social forums who do a lot image and video embedding.
Wouldn't this be from the new multi device account thing the have set up?
Dolphin's response indicates that they submitted every URL you visit (including https://) in plaintext to their servers to match it against the database to see if they had a "webzine" reformatter for that browser. They claim no data is stored.
I don't see it as a problem any more, but only because Dolphin is uninstalled from my Android now.