Originally Posted by
volvic07
Main difference: aesthetic
Frankly, you could channel magic through a pen, a baguette, or a sex toy, if you felt so inclined.
Essentially, either one is used to channel, focus, and direct energy. They have more uses, of course, but you could probably compile a small book on them.
You may also find it useful for your 'magical persona' i.e. making you get your head into the right 'headspace' to do stuff successfully. If your image of what you need (for youself) includes a wand rather than a staff, use it.