Niko is the exploration character IMO. I love taking him to tourist areas, because he fits in. Taking Niko downtown in a suit makes sense because at the time Niko was associated with Algonquin he was working for the mob, Francis McReary and U.L Paper, all people in those situations had suits so it makes sense. Modo/Russian shop in urban areas.
Johnny however has a presence to him. The big leather jacket, boots, rough jeans and the tattooed face. Not to mention his broken nose, and the giant MC patch on his back. He goes where the club needs him to go.
Luis is mostly Algonquin. He barely seemed familiar with Alderney. He has clothing options and all of them fit the Algonquin vibe. With his nightclubs he has his suit and two jackets, for North Holland he has his hoodies and jacket.