How can this question be reasonably answered? Maybe places with high numbers of academics and articulate people can be measured but that's about it. There's multiple dimensions when it comes to ideology and multiple approaches to each dimension. There's even fundamentally different interpretations of the categorical differences on how to subdivide the classifications of these systems. And each of these facets have wi…
Look for places with competitive elections.
As a concrete analogy, let's pretend there's a monarchy and the king, with identical twins, dies. There can be a highly competitive power struggle in between the two heirs but not over anything ideologically different.
This happens in sports all the time. There's many highly competitive sports games, but the two teams are still playing the same game by the same rules; they don't represent different ideologies.