Darcy, few cruise ship cabins can accommodate 10+ suitcases, no matter how many people are in there!
And few cruise ship cabins have enough storage space to hold the contents of 10 suitcases.
The first thing new cruisers say when they get back from their first cruise, is that they packed way too much stuff.
Honestly, you don't need a new outfit for every morning, afternoon, and evening. You don't need winter clothes. Bermuda's weather is about the same as South Carolina's. If you repeat an outfit, trust me, no one will notice.
I'd really suggest each of you take one suitcase and a carry-on type bag. Try to plan your clothing such that you need a minimum of different color shoes.