But Erry, what is your dream school? All of them have advantages and disadvantages but undoubtedly both SIPA and SAIS are great. However, you should have a feeling, just follow it! This might sound kinda corny (well, actually it's...lol) but listen to your heart. Graduate school is not only to grow academically or professionally, but also personally. You are going to spend at least two years of your life there...So the city is also important. I don't know, just follow your intuition and you'll be fine. Good luck!
Btw, I would like to see you at SIPA!