CREATE TABLE table_203_426 (id DECIMAL, "year" DECIMAL, "title" TEXT, "peak chart positions\ aus" DECIMAL, "peak chart positions\ nz" DECIMAL, "peak chart positions\ uk" DECIMAL, "album" TEXT)

what title received the most favorable position on the aus chart ?
SELECT "title" FROM table_203_426 ORDER BY "peak chart positions\naus" LIMIT 1
SELECT "title" FROM "table_203_426" ORDER BY "peak chart positions\naus" NULLS FIRST LIMIT 1