An Aperture User Looks At Adobe Lightroom
In my opinion, Aperture vs. Lightroom is the same discussion as Canon vs. Nikon. Each has strengths and weaknesses, but it’s not a no-brainer decision either way. You’ll produce good results with both applications, and the real decisions come down to personal preference, and specific features that you may need for a very specific reason.
That sounds right. I happen to like Aperture and Canon, and of course I wish Aperture were faster.
Update: Ted Leung’s take.