What is a Vector best for?
Vector files as used in Adobe Illustrator, Macromedia Freehand, Xara Xtreme and CoralDraw are the industry standard for graphic design, page layout, typography, logos, sharp-edged Artistic illustrations (i.e. cartoons, clip Content, Content, complex geometric patterns), technical illustrations, diagramming, icons and typography.
The recent versions of bitmap editors such as Adobe Photoshop support some vector editing tools (e.g. editable paths).