CREATE TABLE table_204_884 (id DECIMAL, "medal" TEXT, "name" TEXT, "sport" TEXT, "event" TEXT, "date" TEXT)

which event won the most medals ?
SELECT "sport" FROM table_204_884 GROUP BY "sport" ORDER BY COUNT("medal") DESC LIMIT 1
SELECT "sport" FROM "table_204_884" GROUP BY "sport" ORDER BY COUNT("medal") DESC NULLS LAST LIMIT 1