I've got someone (non-pro) who is looking for a new P&S camera. He is fixed on a getting a Sony product for personal reasons. He travels a lot, so it needs to be lightweight and easy to carry. He'd be doing sports, outdoor and other photos. Interchangeable lenses would be nice, but not a deal breaker. I personally think the RX1 would be overkill.
Sony models only, please. Why you think a particular model would suit him would also be helpful.