For foreigners, I understand it's probably easier to enter any of the other sovereign islands than a US territory, or (if you're from the EU), any of the colonial islands would also be easy.
If you need a passport, you need a passport. If you need a Visa, you need a Visa.
It might be cheaper or a shorter trip. But besides that it's the same.
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Unless you take a cruise I guess.
And those are supposed to be features?
Remember you are responding to comments discussing how it's easier, not "better".
Your comment, as it is, is totally out of place for this thread.
- Culebra has amazing beaches - Visit the bioluminescent bay - Visit El Yunque. You can do the regular tour or visit other trails. - You can go rapeling - You can go SCUBA diving - You can go visit reefs - You can go zip-lining
They're not limited to PR, but you can do them someplace new/different.
You can escape the cold. (45° here and raining. I _kind_ of wish I was back in PR)