CREATE TABLE table_204_63 (id NUMBER, "round" NUMBER, "circuit" CLOB, "date" CLOB, "pole position" CLOB, "winning driver" CLOB, "winning team" CLOB, "trophy winner" CLOB)

who appears more often , christiano citron or philip cloostermans ?
SELECT "winning driver" FROM table_204_63 WHERE "winning driver" IN ('christiano citron', 'philip cloostermans') GROUP BY "winning driver" ORDER BY COUNT(*) DESC LIMIT 1
SELECT "winning driver" FROM "table_204_63" WHERE "winning driver" IN ('christiano citron', 'philip cloostermans') GROUP BY "winning driver" ORDER BY COUNT(*) DESC FETCH FIRST 1 ROWS ONLY