Three of us posted almost simultaneously, so I hope I haven’t messed up the scoring.
I was going to make some of same points about Pericles/Gorgo as
@CrabHelmet did (tho probs with less aggro). ‘Generating Faith’ can be broken down into three main categories:
(1) getting high adjacency on holy sites;
(2) filling up those holy sites with tier 1, 2, and 3 buildings;
(3) making those holy sites more cost effective by placing envoys in religious city states.
The Greeks don’t get specific bonuses to no. 1 (only Brazil, Poland, Indonesia, and Japan do), but they excel and no. 2 and 3. Highest culture = fastest access to holy site tier buildings; and spamming acropoleis = lockdown on any religious city states. Also, as Crabhelmet says don’t underestimate the sheer flexibility of an extra wildcard - it’s worth an upvote almost by itself. I’d honestly pick Gorgo for religion ahead of multiple Civs remaining for her wildcard & culture combo.
Now, compare these points to Cleopatra:
(1) Does she get high bonuses to holy site adjacency? Only if she picks a terrain specific pantheon, but that’s the same as everyone.
(2) can she fill up her holy sites quickly? Well, she gets a very minor bonus to placing them next to rivers, and the Sphinx grants a little culture. But the river bonus is almost negligible (15% is not a lot) and forces you to place the holy sites in unideal locations; while the Sphinx’s culture pales in comparison to Gorgo’s culture. So no, Cleo doesn’t get to fill her holy sites up remarkably quick.
(3) does she get special bonuses to envoys? Nope.
To be fair to Cleo, you could introduce a (4) in her case, namely, Faith from sphinxes (esp. in combo with earth goddess). But this is plain worse than any of the bonuses tied to holy sites, because improvements require population to work whereas district yields do not.
As for religious alliances, the reason no one had mentioned it yet is probably because it’s not really that important. Neat to have, sure, if you manage to reach the higher alliance levels - but that’s a slow-burner strategy in a game style which rewards speed.
And to wind this off, compare the three points to Pachacuti:
(1) high adjacency? Yup, from mountains.
(2) fill up holy sites fast? Yup, from having high production cities in general.
(3) envoys? No, not really.
Plus (4) tiles yielding Faith? Yes, earth goddess & mountains.
Hence why I think the order of elimination should be Cleo before Pachacuti, with Gorgo in the game for much, much longer.
Amanitore/Nubia [2] FWIW, I agree that her time has come. But I think Cleo’s time has also come too.
Chandragupta/India [16]
Cleopatra/Egypt [7] (10-3) see explanation above.
Gandhi/India [25]
Genghis Khan/Mongolia [13]
Gitarja/Indonesia [20]
Gorgo/Greece [17] (16+1) see explanation above.
Hojo Tokimune/Japan [27]
Jadwiga/Poland [21]
Jayavarman/Khmer [11]
Mansa Musa/Mali [26]
Pachacuti/Inca [6] Also see above.
Pedro/Brazil [22]
Peter/Russia [32]
Saladin/Arabia [31]
Tamar/Georgia [24
]