There we go. Decent points. But I do not think the battle cry and voice of the empire powers would affect ghosts right? Do not assume gameplay balancing would be in the game. Hist skin and Adrenaline rush and such would be more passive abilities not activated ones.
Argonians would just regenerate health much faster than the other races. Redguards would be able to handle sustained hand to hand conflicts longer. Altmer would be able to regerate their magicka at a standard faster rate than the other races. Dunmer Ancestral ghosts last until they are banished. Warcry simulates the intimidation of a charging Nord warrior. Berserk simulates the Orcs getting crazed and going into a bloodrush. Khajiit can see at night(??) and will always have a weapon at hand, their hands(claws)... Bosmer can summon animals to do their bidding (idk how useful that would be? Mess up cavalry charges?). Imperials are great negotiators and can trick opponents more easily than others can i would say voice of the emperor simulates that. Bretons can sometimes absorb spells and generally are more resistant to magicka effects.
I said from a gameplay standpoint. The Voice and the Cry are the two most powerful racials against a large group. Pair that with the massive size of their armies, and the Nords and Imperials are unstoppable.
From a lore standpoint, it depends on the situation. Nobody would conquer the wood elves, they're masters of defensive warfare. But they wouldn't last long in a straight up fight. The same applies to the Argonians, though less extreme. They can defend against most armies, but can still launch an effective attack. Redguards are the best natural fighters, and each individual soldier is stronger than most. But they lack any real advantage. They'd more likely be a large name, but not the largest.
Altmer would wreak havoc, but it's unlikely they would win. They're affinity for magic would be tossed out the window if the Bretons decided to take them down. Or the Dunmer, for that matter. However, from a lore standpoint, the Dunmer would get their asses served to them. They're a shattered army and a fractured race. They lost their homeland to their former slaves, and now they're the biggest sob story in Tamirel.
I'd say in a general ware, it'd go along these lines: Imperial, Nord, Breton, Argonian, Orc, Redguard, Bosmer, Khajiit, Dunmer, Altmer