I much prefer Android over iOS… Apple is very well known for cooperating with different agencies both in Canada and the USA. In fact, there have been a number of people in Canada alone who have had literally the entire contents of their whole device easily and willingly turned over to the authorities, without putting up any resistance, and in some cases, without even requiring a warrant to divulge that information. It was simply requested without any sort of legal process and voluntarily handed over, including live updates to keep track of a suspected crime in progress to use that information against the person, long before even having to seek a warrant for the arrest. The information in one such case that I can think of was used as their "probable cause" to arrest and detain first, THEN seek the warrant for custody. Granted, I don't intend on doing anything illegal, however having gone through a legal nightmare a few years back over something that I didn't even do, I'm certainly not about to give the wrong people anything that could be of any value to them if I can absolutely help it.
While Google does track certain things, they do not store anywhere NEAR as much information, and they go out of their way to put up as much of a fight as possible to resist having to cooperate with the authorities. That's part of why Google goes to great lengths to ensure that the powers that be simply cannot be contacted. Among the things that are not stored on Google but are stored if you have iOS include text messages, every single file that you've stored on your phone, all of your contacts (regardless of whether or not you use the cloud), and so, so much more.... I happen to know for a fact that in Canada, unless the phone is a Telus post-paid cell phone, once the text message is deleted from the device, it is gone forever, unless it can be retrieved from the other device that either sent you the message, or received the message from you.
Also, the different features that Android phones have to integrate into Google do come with alternatives that do not require you to use Google to make them work. If you use these options to steer clear of "the cloud", then the information is kept solely within your device. The same cannot be said about iOS products, as the ENTIRE phone is forcefully backed up to the cloud, which includes.... you guessed it.... All that information you were trying to keep OUT of the cloud.
Since I have been a person of interest by the authorities in my community in the past, this is my reason for choosing Google as sadly, being the lesser of the two evils.