Funny how some threads seem to live forever. There's lots of good information accumulated in this one.
For travel and tropical water the fairly new Scubapro Go Travel may be worth considering. They are lightweight, and very comfortable to wear barefoot. I'm a big guy, and find them a bit soft when I really want thrust, but most of my photo dives are quite slow so I can live with that.
For travel (to tropical water) I switched to barefoot fins years ago. When I don't need boots / socks it also saves weight, and its one less item to forget or lose. Other barefoot fins often give me blisters after 2-3 days of intense diving, the Scubapro Go Travel is the first barefoot fin I have tried that doesn't.
The spring strap design is actually really comfortable, and makes them fit most people.