Definitely agreed with keeping Persia pre-Islamic. Chances are we'll get at least a couple of Islamic leaders and I don't see many opportunities to add Zoroastrian leaders. Shappur II and Khosrow II both look like great choices but I think I'd still prefer Khosrow I for Persia's alt leader and he could easily have building bonuses too. Is there anything I should know about them that makes them more tempting as leaders or is it just a matter of personal preference?
Khosrow II was a typo (though not at all a bad option); I meant Khosrow I. While I think any of the three would be fine choices and could easily have cultural bonuses, Shappur II seems to me the best fit. Khosrow II does feature in the
Shahnemah, but Firaxis prefers more recent cultural references.
You've got me curious about these dreadful leaders! Most of the sources I've seen online say Akhenaten (who wouldn't be my pick for Egypt's alt leader but he would be a fascinating choice) was the worst but I'd like to know who else did just as bad or possibly worse at ruling ancient Egypt.
I have to protest. Akhenaten's reign
ended disastrously, but he wasn't a horrible ruler in his life time. He effected a radical culture change in one of the most conservative cultures in human history, presided (and spearheaded) a cultural renaissance, he broke the power of the priestly bureaucracy (for a time), and enacted social reforms. Later in his reign he suffered from ill health and depression (possibly the result of the death of Nefertiti, who disappears from the records around that time, but who has also been proposed as the identity of the definitely female pharaoh who briefly succeeded Akhenaten prior to Tutankhamun, Neferneferuaten, though Meritaten/Meritamun and others have been proposed as well), resulting in bankrupting the royal treasury and watching his reforms crash down around him. So in terms of
legacy, Akhenaten was ineffective, but I think it's a little unfair to call him a bad ruler considering what he
did accomplish earlier in his reign. I think it's somewhat unfortunate that a lot of Akhenaten's pop culture capital comes from Atenism, which was important to his reign but most certainly was
not the world's first monotheistic religion--chiefly because it wasn't monotheistic but henotheistic, which was the cultural norm throughout the Near East outside of Egypt (and was probably the case in pre-Dynastic Egypt as well: the later state of Egyptian religion probably represents a synthesis of regional pantheons when Upper and Lower Egypt were unified).
NB I'm not arguing that Akhenaten was a great leader. His reign absolutely ended in disaster and brought a grim conclusion to a glorious dynasty (he was succeeded by a few completely unremarkable pharaohs who represented a return to status quo but were virtually powerless in the face of the resurgence of the priests of Amun). I'm just saying that judging him as "horrible" or "Egypt's worst pharaoh" is far harsher than he deserves in light of the accomplishments earlier in his reign.
I'm afraid I don't really agree with this stated parameter. The Sassanids were a cool civilization, and should have leaders on the table as considerations, certainly - but I wouldn't artificially declare a ban on considering several notable Safavid, Zengrid, or even early Qajar leaders
The problem is exactly as TahamiTsunami stated, though: there are a lot of other Islamic civs to choose from, but not so many Zoroastrian civs (maybe Sogdia, but a Sogdian leader would be more likely to be Buddhist). Speaking for myself, it's neither slighting the accomplishments of the later Persians nor denying the cultural continuity of Persia; it's rather preferring a greater diversity in the potential favored religions (as the game stands we're swimming in Christians and Buddhists, and there's a lot of potential Islamic civs like the Ottomans, Mali, Morocco, etc. that could join the roster). But aside from that consideration, I'd have no problem with Safavids etc. being represented as alternate leaders of Persia.
(admittedly, Persia's history began to go downhill sharply when the Pahlavis took power in 1925).
I've always had a certain admiration for Reza Shah. He wasn't perfect, he made plenty of mistakes, and enacted plenty of poor policies, but he also tried to modernize the nation and unify its disparate religions (I recall reading he described Zoroastrians and Persian Christians as a national heritage). He was certainly preferable to the regime that succeeded him, at any rate. (He's too recent to be a Civ leader, though, nor do I care for such recent leaders in game anyway.)