WB2000 indoor quality
The WB2000 has a nicer screen, fast lens at f/2.4, and much better video at full 1080p HD recording (I saw a sample on youtube, it was fantastic, and sound wasn't bad either)
The S95 has a slightly bigger sensor, slightly faster lens at f/2.0, so you'll get better low light quality (but not drastically).
They're both pretty good...but if video is more important, I would go with the WB2000. If photo quality is more important, the S95 is the better choice.