I think it concentrated more on the aspects of how pleasant each is to use. The analysis was light on the technical side because ladyada targets more hobbyists (like myself :D ) and prototype creation rather than people that want to create a product that will be manufactured, reproduced and distributed on a large scale.
Though I haven't used PIC personally though, I have used AVR before, and found it quite pleasant and flexible, though in all fairness I can't compare it to PIC. I will say though that there seems to be more resources and documentation on PIC than AVR (I bough a really good book on embedded devices that was based on PIC, and though the examples were helpful universally, they were targeting the PIC crowd specifically.)
Though I haven't used PIC personally though, I have used AVR before, and found it quite pleasant and flexible, though in all fairness I can't compare it to PIC. I will say though that there seems to be more resources and documentation on PIC than AVR (I bough a really good book on embedded devices that was based on PIC, and though the examples were helpful universally, they were targeting the PIC crowd specifically.)