Hi. There are no perks to Good Neighbor. If being across the street is important, most of those hotels will be Good Neighbor. We just stayed at the Ramada Maingate at the Park and had an excellent experience. We've also tried Desert Inn and did not care or it. Experiences will vary depending on what is important to you so have your priority list and go from there.
As for Priceline, we do that alot. Only two 4-star hotels are on there - Hyatt and Marriott. If we can get one for under $100 we do that, especially if we think we will get Marriott - which is across the street from the Toy Story lot. It's also walkable if you're up to it. The Hyatt is further and not walkable but has its own shuttle. But even aside from that the Marriott is slightly nicer, has a better pool and the customer service is excellent.
We will also bid on 3.5 star if we think we will get the Wyndham. Very nice, nice pool, and usually get a great rate. Also not walkable but has its own shuttle. We have gotten the Red Lion too which while walkable and also near Toy Story, is not nearly as nice as Wyndham. So if you are thinking of doing a Priceline bid or express deal, be sure to do your research first. And even then there's no guarantee. If you are just looking at their hotels listings with rates, we have not found that they offer better deals than through the hotel directly.