Hulu makes the strongest early shortlist for US viewers who care about current TV, bundle options, or the ability to move up toward Live TV instead of just paying for one static on-demand catalogue. Those are the users most likely to feel the service's strengths quickly rather than having to talk themselves into them.
The opposite test matters just as much. Hulu is usually a weaker first choice for people outside the US market or people who want the simplest possible subscription without plan decisions and bundle choices. That does not make it bad; it just means its strongest arguments are aimed somewhere else.