I recently bought Lightroom 4 because the RAW engine in it is so much better than Aperture 3. I hope Apple will release a 4.0 version with a proper RAW converter. I love everything about Aperture but the RAW converter. Work flow, tools, interface, the ability to paint in or "localized" adjustments on color adjustments, are just so much better than LR. Besides the RAW conversion, the only other thing I like about LR over Aperture, is the orange channel in the color adjustment. But, with better color localized adjustments in In Aperture I don't really need an orange channel.

I know it's a little off topic, but this thread made me want to vent.