Take a look at this post. They're very similar pens, with mostly aesthetic differences.
Also, what are you planning on using the pen for? If show, you might prefer the Al-Star and its aluminum construction. It will also have a slightly heavier weight to it. That said, it'll dent and show wear much more easily. The Safari's plastic construction is more durable and might be a better workhorse.
In case you were wondering, The Al-Star and Safari can share or swap nibs, so if you want to order both, you could get one in Fine and one with a Stub nib, and try both.
You might also consider adding the Pilot Metropolitan to your list of intro-pens to check out.
Edited by Out0Mind, 29 March 2016 - 21:55.