Ally/horde ratio?
You can use an addon like CensusPlusClassic several times/day over several days/weeks/months and get a sense for what sort of population data you might care about.
https://www.curseforge.com/wow/addons/censusplusclassic
If you care to measure population based on raid logs, then it’s currently 0:0. This will likely change at some point in the future.
bump i want to know too
70/30 A to H.
Even if it is only 55/45 A:H it won’t be long before it’s 99:1.
When you Horde get tired of the ganking, come join us on Shadowstrike. Ganking isn’t an issue here.
No idea, but world pvp has been fun while leveling on Jom. A group of Horde went to Westfall a few days ago and they were baiting people into one of the houses near the Deadmines entrance and 2 undead rogues were waiting in there 
also yesterday there was a 5v5 near BFD entrance which they won once and then we won it.
Several census reports form players on server say 55 ally 45 horde