Just as a heads up the closest off-site properties are better described as motels, not hotels. If you want a hotel feel, you'll have to walk 10-15 minutes down to the conference center hotels (Marriott, Hilton, Doubletree). I think the Embassy Suites, Sheraton, and one or two other hotels have shuttles that run regularly to the parks. Could be wrong about the shuttles, but we didn't mind the walk from the Marriott and often stay on points when we're off-site so its not really something we look at anymore.
If you're okay with motels, then BW PPI is the closest, though I prefer the Fairfield Inn a few doors down since it felt nicer to me. Lots of people like HoJo too, which is one more door down, probably about a 7 minute walk.