MIke, as much as i enjoyed Oasis and think it is "Wow," I have to actually admit that since I am not a family man or a caribbean cruiser, it would not be my first choice either.
However, I am an experienced cruiser who has seen the Caribbean - and Hairspray, and Blue Man Group (several times).
That being said, I like an active ship. I just prefer a ship that focusses more on ports of call rather than onboard fun.
But for a family reunion - yes, I would recommend these ships in a nano-second. Also as a "try it once and see."