I went from iPhone to the S3. The first few days were super frustrating for me- Ive been an Apple nerd for a long, long time...But now I LOVE it. I used an app to
sync everything from itunes to my phone. I am selling my MacBook and going back to PC as well- tired of fighting with school programs, etc.
When I was looking at phones, the only other phones I even considered other than the iPhone 5 were the s3 and the note...I really love my s3. Huge screen is awesome.