The Sims 2 Castaway for PC...?

I had Castaway for Nintendo DS, but it got really boring after I finished the story, which only took me a couple of hours, so I have a few questions:

1. Is it worth getting for PC? I know the DS version is really dumbed down compared to the PC version.

2. What is the difference between The Sims 2 Castaway and The Sims 2 Castaway Stories?

3. What are the pros and cons of the PC version?

Thank you! Any help is appreciated!