CREATE TABLE table_203_676 (id DECIMAL, "pick #" DECIMAL, "cfl team" TEXT, "player" TEXT, "position" TEXT, "college" TEXT)

which cfl team has the most picks in round four ?
SELECT "cfl team" FROM table_203_676 GROUP BY "cfl team" ORDER BY COUNT(*) DESC LIMIT 1
SELECT "cfl team" FROM "table_203_676" GROUP BY "cfl team" ORDER BY COUNT(*) DESC NULLS LAST LIMIT 1