The New York Times tends to be the administration’s favored recipient for foreign policy and national security leaks.
The Wall Street Journal (and, to a lesser extent, Bloomberg News) is the White House’s go-to outlet for economic policy developments.
The Washington Post gets its share of advance information about budget issues and government agencies.
Politico’s Mike Allen, who writes the insider Playbook feature, is a favorite for officially leaked personnel moves.
The Associated Press and USA Today—the biggest domestic news service and the most widely circulated newspaper, respectively—get whatever is left over.