<p>Hi there! I honestly think that you have really good chances of getting in (both ED and RD)!
I got in this year RD (admitted to the Honors Program as well), and I had a 3.8 GPA and 2010 SATs. Some of our extracurriculars are similar but I honestly have to say that you probably have more than I did. Also your overall profile, academics and ECs, seems really strong so congrats on that!! 
Like @Mbmama said, I also think that if you want to get some merit aid you should probably raise you SAT score a little. (I personally got a 10k scholarship)
But overall, if you show in your essays your interest in the school and why you would be a good addition to their student body, you should be good.
Another little tip: in your essays try to be specific! For example, in the “Why GW?” essay I mentioned that the fact that the university organises events like the “Hunger & Homelessness Awareness Week” fits perfectly with my own passion for volunteering. Things like that. At the time I was writing the essay I had honestly no idea what this awareness week was, but I looked on their website to find characteristics of the university that I could bring up and tie to my own CV.
Hope this helps and if you want to know anything else let me know :)</p>