I recently bought a couple of these Integral 16W[*] LED bulbs:
They really do seem to be as bright as a 100W bulb, and similar to a Philips "110W equivalent" 23W compact fluorescent. The light is directed downwards more than with an incandescent (they claim a 140 degree angle) but they seem to light up the useful areas of the room perfectly well (I'm using spherical paper shades).
Of course they are ridiculously expensive, and have even gone up on the Amazon website since I bought them.
[*] The Integral web site has two pages for bulbs with the same part number, one described as 16W and discontinued, the other described as 13.5W. So I'm not certain which I have.-- Richard