The city would be a good spot for corrupt characters but you won't find much honourable characters. The Mountain, however, has the ability to have both and I'm big into the Eyrie in ASoIaF so Mountain for me!
I wouldn't quite say that. Basically we're at an impasse GM wise because there's conflicting views in the interest check, and we need to make a decision on how to organize the families, which families to pick, how many families, and where to set the RP.