Pioneer Press previews the area teams in the Class 8A playoffs, including Loyola, Hinsdale Central, Stevenson, Barrington, Lyons, Oak Park-River Forest, New Trier, Leyden, Maine South, Evanston and Notre Dame.Local teamstop-seeded Loyola vs. 32nd-seeded O'Fallonsecond-seeded Hinsdale Central vs....