Saddam Hussein was an inhuman psychopath and its not for nothing he earned the sobriquet "The Butcher Of Baghdad." In all likelihood his death compared to how he executed all his victims, will be a humane affair.
"Show me just what Mohammed brought that was new, and there you will find things only evil and inhuman, such as his command to spread by the sword the faith he preached." -Manuel II Paleologus
Yes, the things Saddam did to his own people, even to his own STAFF, were more brutal and inhumane than anything.
Oh, and he definitely had PLENTY of chemical and bioweapons. And plenty of time to get rid of them before we got there.