[GSlob]

"Who misruled Poland more? Russia or Prussia?"
Russia. Just 15 years after Napoleonic wars there was a big 1830-31 uprising in "restored Kingdom of Poland", and then another, 32 years later. Uprisings do not happen out of nothing - one normally has to provoke them. As these Confucians used to say, one ought to be perfecting one's rule, so that external barbarians would voluntarily come and bring tribute [and not start uprisings]. It sounds idealistic, but there is more than a grain of truth in it. Oppressive places have difficulty keeping their people in, and less oppressive ones have difficulty keeping the strangers out.

[Destro]

Russia restored the Kingdom of Poland over Prussian objections - under Prussia there was no Poland. Uprisings happened because of many reasons - but Russian musrule of Poland is not one of them since Czarist rule was hands off.