We're staying there for 1 night in July. It's 4.5 miles to Epcot. I'm not sure about the other parks--we're going to Epcot on our checkout day, so our TA put us there so we'd be close.
If you're bored (or obsessive, like me!), you can put inthe addresses at Mapquest and look at the map to see distance/traffic route. I know it was a straight shot from there to Epcot.