I've been reading several threads on the pros and cons to b2b. We are hoping to cruise in Feb 2011 for 7 nights. How do I choose magic vs Dream b2b DS 13 and DD 9 love pools water slides etc and spent a lot of our 4 day in the overly packed pools...they didn't care. The new ship will have only sailed a few times and is very tempting. How do we decide?? I've read b2b and 7 nights are not the same. What would you do?