At the Delaware Convention there is no record of the proceedings, magically the document passed without much quarrel and the entire elegated delegation to the Convention was federalist. Point for "democracy" and "transparency".
At the New Jersey convention, the most ardent opponents of the Virginian constitutionalists, the document passed with nary a quarrel.
There is also no record of the Georgia convention, which passed the document unanimously. At the Pennsylvania Convention there was no election for the convention at all as far as I can tell. Connecticut, the only state which didn't support the Philadelphia Constitutional Convention, overwhelmingly ratified the document thanks to a rigged election. In New Hampshire they had to have two conventions because the first one opposed it. Another point for democracy. If you lose, just hold another convention where the composition is more in your favor.
The Massachusetts convention was denounced over and over again for being undemocratic. It and several other states employed the completely illegal tactic of proposing ratification in exchange for proposed amendments.
The Maryland convention was full of weird machinations, since ardent anti-federalists who attended the Philadelphia convention also attended the ratifying convention but did not raise any objections. The elections for the convention were deemed fraudulent.
In numerous states, including South Carolina & Massachussets, among others, the population was majority anti-federalist, but backroom deals led to ratification.