I always hated this Character Xizor though it was great when he got owned by Vader.

"Captain Destroy the Skyhook" Anthony Heald on the audio tape trying to sound as JEJ.

Xizor was a pussy who even Luke Could have probably defeated in a fight if not for his fembot.

Vader could have taken him easily in a duel.

It was ludicrous for Xizor to even try to take down Vader, the Empire or the Emperor.

Sure the underoworld would destroy both the rebels and the empire and Xizor would rule the universe, blah blah blah.

The Empire had enough troops to wipe out all the bounty hunters and completely destroy the black sun organization.

After all the last head of black Sun before Xizor was killed by Maul under Sidious orders.

But if you rationalize with the prequel continuity and exetended EU. Why did'nt Sidious just pull out his lightsaber kill Luke Skywalker with it. If not that at least a duel. Of course since they were filmed out of sequence Sidious is not going to whip out his lightsaber in ROTJ.