I can't say enough good things about the Anaheim Hilton. While the hotel also caters to the convention traveler, there are many Disney View rooms that you can request upon check-in.
The walk to the park is about 12 minutes at a good pace and 18-20 at a leisurely pace. Go to the lobby level and head towards the convention center. Once outside cross the entrance to the parking ramp and take a right towards the parks. Even if the Timon shuttle isn't working, the gates are open and you can cut directly across the empty parking lot. If you are going in the summer, the Timon lot will be open as they direct Handicapped parking here for the people who enter off Harbor.
If don't get a park view room and are back in the hotel for the fireworks, go outside to the parking ramp (top level) and you have a great view there.
Enjoy!