So I was looking at my "Our Last, Best Hope..." deck the other day, and thought to myself "Self, if you are going to be playing a B5 deck that doesn't rely on Alliance of Races, why aren't you using Diplomat Londo and all those cool, rare Centauri diplomacy bruisers you have?" So what we have here is effectively the exact same deck as "Our Last, Best Hope", but with the word "dog" crossed out and "cat" written in in crayon, er, but with all the Human cards swapped out for the appropriate Centauri cards, and a few other card selections changed to capitalize upon the fact that it is a Centauri deck.

Opening Hand:

Londo Mollari (Diplomat)
Vir Cotto
The Hope of Peace
Rapid Growth

Deck (60 cards):

3x Impasse
3x Affirmation of Peace
3x Call in a Marker
3x Affirmation of Power
2x Euphraties Treaty
1x A Brighter Future
1x Non-Aligned Support

3x Level the Playing Field
3x Machiavellian Politics
3x Support Babylon 5
1x Interstellar Alliance
1x Coincidence

1x The Eye
1x Upgraded Defenses
2x Backroom Dealing

1x Into Their Own
1x United Front
1x Personal Growth
1x Focus your Efforts
1x Cult of Personality

2x Peace in Our Time

3x Garrison Fleet
2x Homeworld Fleet (Centauri)

3x Centauri Aide
1x Attache Cotto
1x Lady Morella
2x Minister Virini
1x Minister Verano
1x Urza Jaddo
1x Minister Chorlini
2x Minister Malachi
1x Lord Kiro
1x Emperor Turhan
1x Prime Minister Mollari
1x Emperor Mollari II

1x Efficiency Engineers

Obviously, this deck is going to work just like "Our Last, Best Hope...", i.e. build a strong rank of Diplomacy bruisers backed by The Hope of Peace and steadily increase both your and Babylon 5's influence by winning conflicts and rigging B5 votes with Backroom Dealings, Machiavellian Politics, and Call in a Marker, and then playing Peace in Our Time for the win. Prime Minister Mollari shouldn't ever actually be played, unless he is going to be immediately followed up by Emperor Mollari II, as Prime Minister Mollari is going to be rather inferior (diplomacy wise) to plain old Diplomat Londo (as will Emperor Mollari, in all likelihood, but his 9 intrigue, ability to sponsor and promote for free, and his Major Victory clause generally make up for the loss of a few points of diplomacy). Interstellar Alliance is in there to shut out the likes of the Drakh in a pinch.