Of those, I'd read more about SZ7.

http://www.amazon.com/Panasonic-Sensitivity-Digital-Camera-Optical/dp/B00728Z9JA is in the top sellers list for reasons you can read in the posts there.

If I was traveling and I ignored what I own today, the same maker has a GPS equipped unit for 205ish today at
http://www.amazon.com/Panasonic-DMC-ZS10-Digital-Stabilized-Function/dp/B004KKZ0HY/

I don't know about you, but GPS locations on snaps during travel would be great.
Bob