[Alatar]

- Screen size (size really does matter)
- Widgets - there are just so many and they do such different things that it really is hard to express how convenient they are - toggles, mail viewing, message viewing, RSS feeds, etc. just to name a drop in the ocean
- Drop-down notifications menu - I know you'll say iOS has this, but this is something that's been on Android since I started using it back 3 years ago - and it keeps getting better with every iteration of Android
- Root ability - Not for the average user, somewhat like jailbreaking an iPhone - gives access to more app options that take advantage of Superuser access

Just a few things that come to mind first thing.