Donald Trump?
You forgot about the new buildable wonder: Great Mexican Wall
Visually works like the Chinese Wall but provides bonuses to cultural defense and stability, not military

Donald Trump?
Greece - Leonidas, 300 Spartans, very famous (would be so much more cooler than Alexander again)
America - Theodore Roosevelt
Frequently listed as one of the best presidents in US history, his personality is also legendary. How does he manage to nto appear in civ series is beyond me. FAR more interesting leader than Washington.
I know it is an abstraction, but I really don't think you can have any other leader for a collective Greek culture than Alexander, as all the leaders mentioned identified just as closely in not more so with their local, polis based identity rather than any panhellenic ideal.
I would totally be up for an Athenian civ, a Spartan civ, a Syracusan civ and so on ;-)
BYZANTIUM SHOULD BE HEADED BY THE ONE TRUE KING!
Aragorn
Nikephoros phokas
Alternately they should be lead the byConan the Barbarian
Konon the Isaurian
I'd also like the throw in a good Roman of the res publica, Scipio....
We need half a dozen civs from India and China before we even think about adding another European one, especially minor ones.