If you haven't been on the Fantasy then there is no possible way you could be disappointed in the Dream. Folks who have sailed the Fantasy are still not disappointed with the Dream. Each offer a slightly different product.
My point was the Fantasy does the longer sailings and she is newer and has been tweaked from lessons learned from her sister the Dream. Therefore given the poll parameters ......
The Dream is a beauty and will provide 90% of the Fantasy experience, especially on a shorter sailing. We just prefer the longer sailings and my point was if giving a choice (as the poll implied) with all options potentially on the table, ... the longer nights and tweaked Fantasy makes sense to "us." , and IMO, should to everyone.
Try to book a 4 night sailing if at all possible. Three nights is too short, that only gives you one day of true freedom, if that.
IMO
Enjoy