We stayed at the GCH the last week of June and were able to get in early to get our fast passes. We were probably one of the first 100 people in and got fast passes for the blue section, which is off to the left of the center. Make sure you arrive to WOC early because we got there at 7:30 for a 9:00 show and there were already a ton of people waiting.
Personally, I thought the view was much better from our room at the GCH ( we were staying in one of the DVC villas). I'm short and there was a really tall person in front of me wearing a cowboy hat, so I didn't see very much at all.

If the dining plan gets you into the yellow section, then I would do that. That section is front and center and there were hardly any people in it until they let the ropes down 5 minutes before the show began to let the other sections in.