Star Wars Comparison Chart #3.
Capital Starships, these are the official sizes, taken from Star Wars.com.
Update: New chart with greatly expanded information, double click on image to view full size.
Information: Star Wars.com & Wookiepedia.
Side-Views & Logos: Google Images + Others.
Disclimer: Star Wars is a registered trademark of Lucasfilm Ltd - no copyright infringement is intended.