Mr Light wrote:
I don't like the way Maul begged for his life, though. He should have been stronger than that, defiant to the end.
Should he, though? Against anyone else, sure. But he was Sidious's apprentice. I'm sure the Sith master-apprentice relationship is traditionally a very abusive one, with the apprentice subjected to a lot of cruelty by the master and brutalized into submission. So Sidious would've been the one person who could break down Maul's defenses and reduce him to that submissive status again.