While your opinion is of course paramount, you should try the Kindle Fire's browser. (I have the original Kindle Fire; newer models are probably better off -- that said, my original iPads still work fine and their browsers are perfectly usable, if slow.)

That said, I use Mobile Safari a lot and it seems pretty good. My experience of Android browsers pretty much ended when my Nexus 7 died, but certainly it did not seem superior in any respect -- and it was markedly inferior in some -- to Mobile Safari.