they may not be as good as previous years, but looking at what they have now and what they have in the future, it is strong to say Irmo is going to make another strong push. Yes, Northwestern is still here but is their program as a whole dominating as Irmo's? Irmo's jv team has 5 or 6 challenge/premier players that could start on some teams varsity.
As of now I think it is a toss up between Irmo and NHS. NHS has the edge because they are reigning state champs but I do believe Irmo has the talent and the coaching to create another dynasty.