CREATE TABLE table_203_125 (id DECIMAL, "club" TEXT, "winners" DECIMAL, "runner-ups" DECIMAL, "winning years" TEXT, "runner-up years" TEXT)

which club has played in the most supercups without winning ?
SELECT "club" FROM table_203_125 ORDER BY "runner-ups" DESC LIMIT 1
SELECT "club" FROM "table_203_125" ORDER BY "runner-ups" DESC NULLS LAST LIMIT 1