In reply to Darth Vader:
> He's definitely got style and good taste
I don't associate those qualities with Darth Vader. Well, maybe you could use style in the sense of being a colorful character, in the way that Wild Bill Hickok or Patton had attention-getting styles. But I don't think of Vader as being concerned with good taste.
I'd use words more like driven and ruthless. And I don't think he'd give a damn about fonts. He'd use whatever military fonts were handy.
However his personal handwriting would be more interesting — forceful, angry yet controlled, dangerous looking.