My only thought is that you should play nice. There are so many people out there that don't have interviews yet, but you are sitting on multiple acceptances. That sounds very selfish. I could understand having an acceptance at your "safety school" and getting an II at your top choice. But it sounds like you already have one of your top picks.
Once I got two acceptances in my "top five" I canceled all my other interviews, except one. I kept my state school and interviewed there.
You will do what you want, and you have earned the interviews, you have every right to go to them. But if you are doing it just so you can feel good about how good you are then that is selfish. If you think that the other schools are better and you could see yourself giving up your acceptances without even thinking about it then I would think that it is okay.
A bird in the hand is worth two in the bush. But don't hold more than two birds. Others want to hunt too.
dsoz