In my experience, the lines that build the quickest in Fantasyland in the morning are PP, Dumbo, Alice. So those are our first three in that order (and yes we are at the front of rope drop so we can be among the first wave on PP). In addition, I've found that Storybook is not open until several hours later in the morning so we don't include that one first thing.
Here is our full list in order: PP, Dumbo, Alice, Toad, Casey Jr (if open), Teacups, Matterhorn, Nemo. We ask CMs when Storybook will open and try to hit it soon after, and we save the carousel, Pinocchio, and SW for much later in the day (when other attractions are very crowded) as these can sometimes have short lines in the afternoon or evening.