CREATE TABLE table_203_43 (id DECIMAL, "polling firm" TEXT, "month" TEXT, "link" TEXT, "favor" DECIMAL, "oppose" DECIMAL)

did february 2012 or july 2006 have more total votes ?
SELECT "month" FROM table_203_43 WHERE "month" IN ('february 2012', 'july 2006') ORDER BY "favor" DESC LIMIT 1
SELECT "month" FROM "table_203_43" WHERE "month" IN ('february 2012', 'july 2006') ORDER BY "favor" DESC NULLS LAST LIMIT 1