I don't need to hear your playlist. That said, it is up to the PD to determine if you will fit the format or can be adapted to it. Don't try to fake someone elses format. Do your current gig, show some production, perhaps a phone bit if you do them, and maybe a quick ad lib at the start saying who you are. Bother to use virgin tape.
Nothing goes over as badly as some old production cassette relabeled.
I am impressed by those who put their demos on a CD with individual tracks I can skim. Unless you really know how to do it, don't be cute or outrageous. Stern wannabes are the cannon fodder of tired PDs. Every PD has his or her own idea of what they're looking for. It also depends on format.