The bunkbed rooms would definitely be great for the kids because they provide a little more room to move around. Plus, the kids love them. We always gotten Woods View rooms. Many of these have good views of the fireworks from MK. I've heard the courtyard view rooms have nice views of the pool, waterfalls, and lake but tend to be a little noisier and less private. They also cost more. Standard view rooms tend to have views of the parking lot. I think the Woods View is great for the value, and I would request North Wing upper floors because those are the rooms with the MK views. I would love to try Concierge sometime, but I've heard some people haven't gotten the greatest views and were bummed for what they paid.
Whatever you do, I'm sure you will love "the Lodge." Make sure you visit the WL FAQ board. There's tons of great info on it, and all of us WL fans are very friendly and eager to help.
Thanks for wishing us a great trip. I can't wait! Just hoping the weather will be OK for us.