Identification with well known historical figures plays a large role in the selection of ingame LHs, however, so it's not that bad if some of these leaders are in.
Indeed, and what's more, Leaderheads are usually meant to embody entire eras of a nation's history. For example, in DoC, Isabella leads Spain throughout the entire Reconquista, before Philip II takes over to represent the reckless overseas expansion and subsequent decline of the Spanish Empire.
If Russia gets shafted with a simply atrocious leader like Czar Nicholas II, and the HRE likewise with Frederick Barbarossa, I'd make the case that a Qing-dynasty LH could represent the decline of China and its exploitation by foreign powers.
Alternatively, if there are plans to include a Jurchen/Manchu civ, make Qianlong their Renaissance-era LH. The Qing occupation of China lasted roughly as long as the Ming dynasty, and nobody in this thread disputes its impact, I think. It should be represented somehow.
On a final note, I think I once saw Hitler in the Civilopedia, who is pretty much the worst possible LH in existence this side of Pol Pot. Mind you, I never saw him in-game, but if he can in fact appear, then we'd have set a strong precedent for terrible incompetent mass-murderer LHs — that is, apart from Stalin and Mao.
And quite impressive.
