Kvatch. Well, to be specific, Kvatch as presented in Kvatch Rising. It's relatively spacious, has a strong trade market with all manner of valuables and consumables being traded and besides having a strong guard detachment, there is a Mage's Guild dedicated to daedric magic and an order of knights made up of the surviving guardsmen(women) from the first battle for Kvatch. Not to mention, the Hero of Kvatch has a home here. Safe, high standard of living, and the best colovian leather around. And let's not forget the Arena, where for as long as supplies last, members of the Mythic Dawn will be fighting for (and losing) their lives on a weekly basis!