I looked at the S3 and my son has the HTC One S. but I went with the Note. The reason? I wanted to replace my aging iPhone 3G and my Archos 70 7" tablet which were both on my last legs.
I realized that I would either have to buy a phone and a tablet or look for something that would replace both. The difference in the screen size on the Note makes all the difference for web browsing, ebook reading and many other functions.
After a week with it, I know I made the right choice.