I've noticed in H14 the antialiased and smoothed modes of the shadows in High Quality Lighting for the viewport have no effect.
Pointshadows and Anitaliased Point shadows look exactly the same and the various area shadow modes all look like the Standard area shadows.
In H13 antialiasing and shadow smoothing works with my card which wasn't even supported.
Also area shadows always seem to have only 3 samples and I have no idea how to change that.

Ambient Occlusion works fine though.