Thanks, all.
@21stamps - yes, as of a few minutes ago, we are heavily leaning Atlanta. We confirmed with one of our many friends up there that it was OK to bring the dog. Also, in the time it took me to call WDW to talk about policies and what not, all available value resorts (and others) were gone. I had a room in my "cart" and went to check out, and it was gone. I'm told there will be more cancellations, talk to the front desk, etc.
But with that being a maybe, my pup's whereabouts being a maybe, and that thing about 90mph winds, Atlanta seems the smart move.
The one thing that was keeping it up in the air is B was supposed to start a new job on Monday. That job has been evacuated, but they said he could start Tuesday or maybe Wednesday and not to put himself or his family at great risk. We were understandably concerned about him losing that gig by seeming disinterested or something.
So we have a plan, which is a relief, and for now at least, our trip continues to it's scheduled finale on Friday night, leaving Saturday morning.