to join in the ranking fun, I made my own combo tier list.
Tier 1: (ACCEPT ACCEPT ACCEPT ACCEPT ACCEPT)
1. Wang Kon of England [Serdoa]
2. Augustus of Sumeria [Dtay]
3. Zara of Dutch [VonTao]
Tier 2: (very happy to have rolled)
4. Hammurabi of India [Adrien] - (very close to putting this Tier 1 b/c the FW is so much better now but I loathe Hammurabi)
5. Sury of Ottomans [Comm]
6. Charlie of Mongolia [AT]
7. Hannibal of Vikings [Borsche]
Tier 3: (definite accepts)
8. Julius of Russia [REM]
10. Pericles of Germany [Plako]
11. Washington of Inca [CH+Fenn]
12. Nappy of Greece [Ichabod+retep]
13. Roosevelt of Mali [Gavagai+Bacchus]
14. Shaka of America [Elkad]
15. Toku of Aztecs [Barteq]
Tier 4: (ehhh... well, um...)
15. Pacal of Persia [Tasunke?]
16. Alexander of Maya [HAK]
17. Justinian of Khmer [Yuris]
18. Joao of Eygpt [Wannabe]
19. Boudica of Japan [Grimace]
Tier 5: (rerolls)
20. Monty of China [Krill]
21. Stalin of Zulu [Donovan]
22. Willem of Celts [Molach]
23. Ragnar of Babylon [Nyles]
In consideration of their starts, REM and Borsche move up, and Gavagai (maybe?) moves down. Serdoa I think moves down just a little bit, his starting area geography might be difficult but who knows with the actual neighbors he has.
I have a much higher opinion of Ind, Imp, and Cha.

I don't any of them are traits you can consider strong by themselves though (like the latest version of Cre), they're either support traits (Ind/Cha) that need a workhorse or early workhorse traits that need mid-late support (Imp). I generally like having one of each category, and that's one reason I like Ind/Imp a lot, especially with a sweet civ like Sumeria.
I like Ind and Imp because they give you a lot of flexibility. Ind can be sure to grab at least one big, centerpiece wonder (think about how late many wonders went in PB18 and how many non-Ind civs got big wonders - hell, dazed got the MoM
without marble) and get other infrastructure up faster by plowing through those bottleneck forges, while Imp has tons of spare early hammers due to settlers being so cheap.
I think the new Cha is pretty good now, although I think it'll do best when paired with something to give it extra early oomph, like Imp, Cre, or especially Pro. I would have loved to see Cyrus or Churchill in this game. Someone like Boudica is just too slow; Hannibal of Vikings is slow too but that combo is special. The new Cha colosseum is a spectacular building IMHO, as it's essentially a 40 hammer forge with +2 Exp on the same tech as a pair of important military units. Cha can beeline Construction as their first real classical tech (no need for Monarchy or Calendar, Currency is less important with a taller capital working more cottages, MC would be strictly inferior, IW as always is situatioal) and then whip themselves into the ground to little-to-no ill effect. A Cha city with just a granary, barracks, and colloseum (160 total hammers) can easily whip out a CR2/Barrage2 Sword/Catapult every other turn, or a C2 WE every third turn. (no stables required!) That is a lot of power, especially if you can hit some overexpanded target still limping towards Currency!
The timing is one of the most important aspects of it; a late cheap colloseum isn't that special because it isn't an expensive building to begin with. However, Cha is one of the better early research civs, along with Cre, and so it's very possible that you may be the first of your neighbors to enter the classical age. On top of that, the building is so cheap that it'll be a single whip/chop per city within a turn or two of having Construction, and you can continue whipping with your high happy cap, perhaps 2-3 more units per city (and possibly even some finished Axes/Swords sitting in the queue before that) within a span of 5-6 more turns. Multiply that by 8-9 maturish cities, and you can have an army heavy enough to wipe out a neighbor before they fully understand what is happening!