Saddam never used chemical weapons against our troops even in the 1992 Gulf War that makes him better then al-Qaeda.
You forgot the whole point of what we are talking about.
If al-Qaeda is worse then the Nazi's. And, the answer to that question is yes. al-Qaeda with the chemical weapons Germany had during the war like Sarin would have used them on Brit civilians and the USSR.
That is not to say Nazi Germany or Saddam's Iraq were nice places. But, they were not as totally evil as al-Qaeda.
Zarqawi planned a freeking chemical attack to kill tens of thousands on the captial city of his own damn country.
Obviously in your opinion, it was mostly jews who were murdered by the nazi's so that's just important in your book.