Revive an Empire/State that existed from before 1900: British Empire is allowed as it existed before 1900. But a Pahlavi Persia for example isn't as it was established in 1925.
I picked other, if you want to stabilise the middle east then bring back the Rashiduns under the first caliphate, this way both Sunni and Shia can easily unite.Ottomans, because SOMEBODY stabilizing the Near East would be a huge benefit on the ground
The Ottomans aren't the most obvious choice. If the same people who controlled it in WWI end up controlling it anyways, we would at the very least see another Armenian genocide.
Guys its ah.com, we all know byzantium will win.