I agree. I wish Google would roll out the updates in one push, instead of in parsed roll outs for OTA's. But, like I said, anyone can download the factory image as soon as Google releases it (for Nexus devices). OEM and carrier update holdups is a whole different ball of wax though.
Um, the redesign and color alterations you speak of has been evolving in Android long before iOS7 went to flat icons. Transitions I agree with you on.
Shortcuts in control center? Android doesn't utilize a control center. Everything is within the Notification Center and Android has been doing that long before Apple even bothered to grace iOS with a notification center.
Battery improvements is not some exclusive to Apple? But the battery saving feature you are likely mentioning is not copied from iOS, but from Samsung.
Network handoff? Can't be copied if it doesn't exist yet on OSX. Yosemite isn't out yet.