My 2 cents worth:
On my first visit to Belize in 2006, I took a day trip to CC (from AC) & really enjoyed it.
So when I was planning my last trip (Nov 09), I thought I would give CC a try. As a woman traveling alone, I obviously have to be very cautious, so I did alot of looking for hotels on CC and just didn't get the good vibe on any that I found.
So, I decided to go back to AC for my holiday. And it was a great trip.
I have to say that I am glad I did not go to CC, as I met some great new friends at one of the dive shops on AC. It ended up being a trip of a lifetime.