Good question! I'm also curious to hear the answers. I've been wanting to buy the Caribbean Bounty mix for a while, but there are other blends that look great too. So many choices!
I've only ever bought the Australian blend and the Petite Hookbill Legume. My birds eat just about anything I put in front of them, or at least the tiels will! If the conures wont try something, it's easy to trick them into trying it at least!