How to pick the perfect destination wedding photography? ?

Do you mean a ton of newlyweds sent you photographs and you need to pick the best one?

As written, your question doesn't make sense. Did you mean to ask "How to pick the perfect destination wedding photograph"er" ?"

Whenever you need a photographer, you must review their portfolio.  Every photographer, regardless of genre, will have a different level of technical and artistic expertise and a unique shooting style.  The only way to ensure that these attributes fit your needs and expectations is to review the photographer's portfolio.  Nowadays, every photographer has a website with an online portfolio.  Once you find a few potential candidates, you need to interview them to find out about their personality and their workflow.  You want to know what's like to work with them BEFORE the big day.  Sure, the person can be a great photographer, but if they're a total @ss to work with, it can really put a damper on one of the most important days of your life.

I'd also go onto Yelp and read any reviews.