What is the best way to resize a vector image that is being used as a logo? Should I resize my canvas at the size I need (180x180) and then export as a .png? Or should I make the canvas really huge (800x800), save as a .jpg and then resize it in the Mac Preview app? I'm finding that some sizes that I need look a tiny bit pixelated and so I figured I would ask the pros on this forum.

Thanks!