I'm not sure about ESPN, but Planet Hollywood and House of Blues take ADRs. However in Jan '05 we had an ADR for House of Blues and when we got there it was not honored because HOB had a private party or something going on that Disney Dining had not been aware of. I've had two other ADRs since that time though, with no problems.
FYI-Cap'n Jack's at DTD do not take ADRs and neither does Big River Grille on the Boardwalk. Those are the only two I'm aware of that don't.