Whichever you go with, you'll have a fun time.

I'd suggest looking at the available options and costs. Then determine what the trade-offs are with the options that meet your budget.

For instance, for the same cost, you might be able to get a Mono where everyone has their own cabin and head. But in a Cat for the same cost, you may have a shared head between cabins.

We've mostly chartered Cats up until our last trip on a 43 Mono. Every trip was great and I've enjoyed each boat. So it really won't matter what you choose, you'll have a fun time!