Which of these three do you prefer and why? Pros and cons? Easy and swift transportation is something important to me.
I've stayed at AOA once and CBR twice and we're looking at ASMo for our next trip. It really depends on so many things.
Our AOA trip was going to be our once in a lifetime (or a long time) trip and we splurged on the suites with 3 very little ones. Then we came back (and back and back) and CBR worked well with
free dining (back when it was table service). We did a 1 BR villa at OKW when our youngest (#4) was 1 for the space and then to keep costs down, we squeezed 6 of us into one CBR room earlier this year.
AOA is amazing with little ones. My three knew all of those movies already, were amazed by every section and I don't regret staying there at all, we loved every minute of it. While I'm leaning towards ASMo for our next trip, I am considering going back to AOA one more time before they completely out grow it. That resort is almost like a theme park in itself for the pre-K crowd.
My wife and I loved CBR, it truly felt like a Caribbean vacation with lush foliage and the pool is fantastic. My only complaint is by age 6 my oldest was too big for the splash area which was very disappointing. But overall a great resort, even with construction and once the Skyliner, restaurants, and DVC building is complete, it will be a hot location.
As an aside, we did not like OKW at all and I really regret not spending a bit more for another villa, although not much was available when we booked. But, the rooms were HUGE and really fit our needs with a baby and 3 other little ones.
And to your question, bus transportation was the same for AOA and CBR (and OKW fwiw). ASMo mostly has a dedicated bus, but may share with the other All stars during off times.
I hope this helps!