Campagnolo changed their shifters for ergonomics, not styling. The hoods fit my hand better. There's much more braking power from the hoods with the new curve in the levers. I can hold the top knob with the outside edge of my palm resting on the hood to give me one more hand position on long rides (and that position is more aero, too)

They are kind of goofy looking. Their marketing department probably doesn't like it!