Hey inanna,
Honestly, we must've hit every Keys venue during our site visit, and each had its pros and cons. Key Largo Grande Resort was nice, but the packages weren't too appealing. Little Palm Island was one of our favorites, but it's adults only and that just wasn't an option. Cheeca Lodge was just gorgeous, but the site fee alone blew our budget!
So, we've actually ruled the Keys out entirely for our DW...too much heartbreak :-(
We're looking at the Mayan Riviera since the Keys doesn't really have any beaches and our money goes a lot further there.