I concur with SwampCreek. I've been to Abaco 4 years ago, but not Berry Islands. As far as I'm concerned, you can't go wrong on either place. And if Berry Islands are not what you want [after you get there] you can always sail to Abaco. After all, it isn't the destination, it's the trip. The world IS a big place and it's all there waiting on you! Go for it.
If it wasn't so early [June], I'm tempted to join you! Have a great voyage.