Personally, I like the concierge service more than the view. We've had marina, lagoon and garden at the GF and all of them are quite lovely. Some Sugarloaf rooms do have views of the fireworks from your balcony. You can't see the castle, but if the winds blowing right, you can hear the howling wolves from Haunted Mansion and the steam whistle.
I think you'll need to pick based on what you'd like the most.
Tammi