3 of 11Image
Every iPhone looks and works the same. Yes, it's true you can't customize the launcher, but you can't customize the launcher. That means when your mom calls with a question about how to use her iPhone, you can answer knowing her phone works exactly like yours does.
When it comes to Android, there are a bunch of different candy coated names (Jelly Bean, Ice Cream Sandwich, Honeycomb), and even different launchers, not just dependent on which phone maker you have, but also those you might add on your own. It gives a ton of freedom, but it's sure not the best for predictability.
Personally, I still like tweaking my new Android, but there is something to be said for consistency of home screens.
Image courtesy my same-ol-same-ol iPhone.