Gave it an A due to the interesting arc significance found in this episode and that of Michael Ansara's performance. A very nice entry into the world of Babylon 5.
Another Centauri is introduced who is significant for much of the story in the next seasons - Lord Refa. His obvious scheming is almost as creepy as Morden's polite attitude. He repeats what Londo said to Morden about the Centauris' "rightful place in the galaxy" - why do they perceive themselves in a role which they really never had? Is it a "big frog in a small pond" syndrome?
Most annoying detail - the orange blossom that Elric gives Sheridan. Ansara (whom I remember well from Star Trek) acts wonderfully, and I would have liked to see more of him, but of course he speaks the lines given to him by the author. I hope we lose all those orange references soon.
I wonder if jms's Babylon 5 reboot ever happens if it might contain more of the technomages than we got in the original B5 series.
I wonder how many episodes a reboot might have. Series are a lot shorter, these days.