There is no sales "style" that consists of winging it—going into a sales meeting unprepared or unable to create value for your dream client. That's not style, that's laziness, and it's never been fashionable.
You aren't making a style decision when you open a sales call by fishing around for something personal on which to build rapport. That is called "wasting your client's time." There will be room later to know your client on a personal level, but taking this approach early on—when you should be creating value—is guaranteed to fail.
You aren't making a style decision when you skip stages in your sales process. You need to establish verifiable outcomes for your client before your decide to work together. Doing partial work isn't a question of style; it's a recipe for losing an opportunity.
You aren't making a style decision when you avoid difficult conversations. It's fear—plain and simple. Lacking the ability to have difficult conversations is weakness. Your dream clients need help dealing with difficult issues, and they will trust people whose style includes helping them deal with those issues.