Apple iPhone 5 or Samsung Galaxy SIII?

I have an upgrade in April and I currently have an iPhone 4. The lock button is broke and I've run out of space. I'm thinking about getting the galaxy but I'm not sure. Is the app store good? Can you still use iTunes to download music onto the phone? Is it okay to not wear a case on it? Is the screen really scratch proof? If you drop it and crack the screen, will you still be able to use the phone?

Yes it is a good phone. The app store is endless. Over all a good phone and you can do many things with it. I'm going to wait till the galaxy s4 comes out though.

The App Store is expanded more than the apple App Store.No, you can't use iTunes to for S3. You still need to get a case, it's like any other phone. I would have to research about it being scratch proof! I would pick iPhone 4S though. It may not be the latest, but the iPone 5 is slightly faster. And can handle LTE. Just try to compare each other to see which is better in your view!