re: Best island in the Caribbean?

I'm sure the gf may ask about safety concerns as you discuss the options. While I have been to a number of islands, and never had any issues, it warrants some research on what's going on.

The State Department site rates countries and has a wealth of information. Trip Advisor forums are another great source.

Good article

And always remember we live or visit major cities all the time that have far worse crime rates. Simple safety precautions and common sense prevail anywhere you go.