Leinster wouldn't be a great choice in a large N swell.

Francis would be fine, unless it has a 'Western component'. If so, there's an anchorage monitor (or...I'm not sure what they call themselves. They're volunteers who are permanently stationed in the anchorage, and are both knowledgeable and friendly)who will sound the alarm if the Francis Bay/Maho Bay anchorage will be untenable.