My first one was:
Dirty James Kidd
You're the pirate everyone else wants to throw in the ocean -- not to get rid of you, you understand; just to get rid of the smell. Even though you're not always the traditional swaggering gallant, your steadiness and planning make you a fine, reliable pirate. Arr!
But I retook it because I had said that I shower daily, then I got this:
Captain James Rackham
Even though there's no legal rank on a pirate ship, everyone recognizes you're the one in charge. You have the good fortune of having a good name, since Rackham (pronounced RACKem, not rack-ham) is one of the coolest sounding surnames for a pirate. Arr!