For just normal browsing, I use dolphin browser. I love the add ons and can't live without tabbed windows, as I always end up having four or five open.
For downloading, however, I have started using boat browser, thanks to a similar thread on XDA. I do a lot of downloading on 3g (no wifi @ work), so a pause and resume feature comes in very handy. Boat is very reliable, for me. While are on the subject though, I am open for suggestions.
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