Alright, I've got a challenge for y'all. I've always felt sorry for Haiti, and I feel like with good luck and a few better choices, they could be a lot more successful. So your challenge is to make Haiti as successful and democratic as possible.
Napoleon not deciding to re-enslave them through superior firepower would have been probably the best premise for a brighter future (I actually toyed with this notion for a TL).
Or keep Toussaint around longer: a problem the Haitian Revolution had was the lack of really effective, far-sighted and cohesive leadership after he was gone. In a sense, they were taken in a loop vaguely similar to the one the Soviet leadership had to face after 1917, only worse: the part of the population with the education and expertise to rebuild the country according to their needs was largely hell-bent to undo everything the revolution had achieved, so to represent not only a problem but a threat. In both cases, the response was extreme brutality, which of course did not much to advance the cause, furthered the international hostility (that would be likely to be there anyway) and deprived the country of critical economical and intellectual resources.
The alternative however would have been a potentially treasonous elite.
Both revolutionary leaderships had had actually more than enough in the way of realities to foster paranoia about it.
Now, Toussaint might, just might have found the tight rope to walk on.
The problem was of course to get the local white elite contribute to the country rebuilding, at least to the point of a begrudging acceptance of the new order if not an enthusiastic endorsement of it, while making sure that they are not plotting re-enslavement every second Thursday.
Is that possible? I think so. Is that easy, or likely? Hell, no.
