Hearing that I am thinking of moving from Aperture to Lightroom, a friend of mine sent me this post on the 21 good reasons to use LR3. You guessed it, he uses Lightroom.
This is not a comparison of LR3 vs. AP3. No way. Actually all 21 reasons apply equally well to LR3 and AP3.
It simply is the 21 good reasons why someone should use a Digital Asset Management (DAM) tool like LR or AP to manage their picture library.