anyone else using aperture 3 w/ the Nik Software plug ins?

so far it is working great for me. i use silver effects pro2 for all my black and white stuff but i was wondering how others use their nik software plug ins with aperture 3.

is it best to do most post processing work in aperture 3 or do most people do their color correcting, noise reduction, b +w editing in Nik Software?
(for those who haver aperture 3 and Nik Software)

does the Nik software do a better job with color correcting and b+w or is it just personnel preference?