Need Help to make a decision: SHOULD I TAKE THE NEW JOB OR STAY

I am a manager on subacute unit for 8 months with excellent performance. I was first a regular nurse on the unit and got promoted as a manager. It was hard in the beginning, however all my staff members respect me and work with me. As per my DON, I was able to achieve a lot in a very short time. I was making more money as a regular nurse because I was doing overtime.
Recently I found out that my DON is leaving, and I started looking for a new job. Some people say that when new DON comes, she or he comes with a team. I found the same position in a nother LTC. They offered me a lot more money for the same job.
I went to talk to the DON, she begged me to stay and said she will speak with her bosses to match it. I promised, I will wait until she gives me a result.
I already got the offer from the other place, I just need to sign it. Today, the DON came to talk to me. She said that the corporate are still looking for salaries in my position with the experience I have, and have not decided yet. She said I should do as I feel it is best for me.
Today, I also founf out that the management position I was offerred WAS NOT filled for 9 months. I was wondering why? I don't know.
The new facility has 5 stars, mine only 2.
PLEASE, PLEASE HELP. WHAT SHOULD I DO???
THANKS TO ALL.