Apple leather is awesome.

I've had the midnight blue and the classic brown.
- Leather will change color over time. Darker colors will look more natural while the lighter colors may look more "dirty".
- Silicone will get linty, in my experience. With a black phone it may not be as noticable as it is on white.
- I've dropped my phone with the leather case several times and it has been fine.
I've bought a bunch of cases, and the Apple leather is the one I've stuck with the longest. I was hesitant at first, but I love it!