CREATE TABLE table_204_981 (id NUMBER, "ep#" NUMBER, "title" CLOB, "broadcast date" CLOB, "written by" CLOB, "directed by" CLOB)

were more episodes written by michael piller & bill dial or by bob shane & ron friedman ?
SELECT "written by" FROM table_204_981 WHERE "written by" IN ('michael piller & bill dial', 'bob shane & ron friedman') GROUP BY "written by" ORDER BY COUNT("ep#") DESC LIMIT 1
SELECT "written by" FROM "table_204_981" WHERE "written by" IN ('michael piller & bill dial', 'bob shane & ron friedman') GROUP BY "written by" ORDER BY COUNT("ep#") DESC FETCH FIRST 1 ROWS ONLY