I had a Nexus before I, smartly, got rid of it for an iPad.
To say that the Google ecosystem is "arguably better than Apple's" is such a farce.
Read what I said a bit more carefully, the Google ecosystem is arguably better ONLY because it's totally web based and has been since it's inception. It's also platform agnostic.
Apple's is neither platform agnostic nor totally web/cloud based. It does however, reach a lot farther than Google's ever could.
For an example, I can open iWork docs and save them right from the iWork apps on a tablet and a Mac. The Google docs can only be opened in a web browser. Not to mention iWork is a full fledged office suite of apps.
You can't however, get iWork on a PC . . . .yet.
It will depend on the users, hence why it's arguably better.