Without The Player's interference ,which faction do you think will end up unifying calradia?

(Note:I Played only warband and I am not aware of any official statement that discuss the following subject).

Yes I know that one of the first things we learned(from The Cities's guild master) is that The Factions could neither Eliminate each other neither coexist,and in paper no faction seem strong enough to unify the land ,but if history tell us something is that sooner or later,a faction will unify the land(Qin dynasty conquering the other 6 kingdoms and Unifying China after 254 years of The Warring States period ),be it 10 years or 50 years or 100 years...the land is going to be unified,But by who?

Let's first examinate each faction?

Swadia?The Strongest faction,be it in term of armies/economy,their lands seem fertile and the commerce seem flourishing in praven/Suno...,So they have the agriculture/financial capacities to support big armies for conquest..but but they have literally The worst position,They are literally surronded by enemies from all sides,They have no natural defense...them surving is a miracle...Once someone conquer his neighborhood and direct the might of 2 kingdoms at them,it is over. If they decide to invade a kingdom,they have to expose their flanks to literally every other kingdom.

Rhodoks?They will be without a doubt the hardest Kingdom to conquer(honestly they may even survive the unification,Their defensive armies+they have natural defenses(the mountains) but the nature of theirs armies is clear not for the conquest,once they leave their mountains/Castles,They will be massacred.

The Nords?No Cavalry?Seriously?They may be good warriors,But they lack the organisation,they are too barbaric Unless they become like Real life Normans(viking-french) by adopting calvary and swadian culture,they have no chance.

Vaegirs?Their military is surely versatile,They have calvary/Infantry/Archers...They can besige cities...from a military perspective,they had a chance but honeslty they don't really have neither the population,neither the agriculture/finacials capabilities to conduct sush a high scale conquer,they suffer from starvation,they are probaly barely surviving.

Khergits?Unless some Genghis Khan like figure emerged and adapt them to siege warfare,they have no chance+they are too barbaric to rule over an organised state like swadia..

The sarranids?The Most Likely, their military is the most versatile with a heavly cavalry on par with the famous swadian knights,so they can compete with anyone+While like 90% of their territories is desert(so I assume there isn't a high concentration of population there (althought the cities of durquba/ahmerrad... there imply otheriwse?seriously how there is such big cities in the middle of desert?),They still have the fertile/commercialy flourishing region around Shariz,they aren't surrounded by enemies and the desert(their core territory) is a natural defense so no one is conquering them any time soon,I don't see how they can conquer the Rhodocks(i don't see how anyone can conquer these guys) but I think that with an alliance with the far Vaegirs,They can conquer the kherjites before turning their eyes to Swadia and invading it from 2 sides,swadia have 0 advantage over them,be it in quality/quanity,once swadia fell,it is just a matter of time for the the Nords and vaegirs.