S3 has got all the features which makes it superior than any other phone. Now this phone is just awesome. and will become awfully awesome after it gets the jelly beans upgrade with Google voice which has got better review than Siri technology.
I am using a S3 for the last two months. The best thing I like the most is the battery back up. It easily sustains 1.5-2 days with moderate use. Advantage of a big screen is that you can enjoy HD movies with great clarity.
Overall, its an amazing device.