Re: Want. Do Not Want.
"You can have as much or little Google with your Android as you want"
That's not my experience I'm afraid. I was told I didn't have to use a Google account with any aspect of Android except the specific things I wanted; however, when trying out CyanogenMod, I logged into the Google Play store to get an app, and all of a sudden Android had fired up a whole load of Google services on the device using my Google account without asking, and it was remarkably difficult to find them all and switch them off. I don't think I ever felt confident that I had turned all these things back off, and eventually I gave up and decided I wasn't comfortable with a corporation having such an invasive presence on my hardware.
At least on iOS, it's quite possible to use the App Store without Apple/iCloud secretly invading your device with its creepy corporate tendrils. Switching on and off the iCloud services you do and don't want is very clear and simple.
Google are very clever with the way they keep the geeks happy by doing the barest minimum to make Android appear theoretically open, but in practice I'm afraid it's no more open than iOS, and it certainly has a lot less respect for your privacy.