I kinda of have to go along with Cam on this one, they are 3 totally different boats.
All will certainly "do it" with different levels of comfort, speed, ease of use, and to a lesser extent, livability.
In deference to Jim, I'd change the phrase "risk tolerence" to "risk survivorability" takinging into account the couples sailing experience.
We are not primarily on earth to see through one another, but to see one another through
Some people are like slinkies: not really good for anything... but you can't help laughing when you push them down the stairs