RAM--
One thing that I have noticed here with my Nexus 6 running Android N (NPD56N), Developer Preview 4, is that since this phone has 3 gigs of RAM I notice that web pages are cached for longer despite having a lot of other apps open in the background. What this means for the average user is that you can go back to a webpage to the work you were doing without the page totally refreshing and wiping out your current progress, whether that be a form that you are filling out or picking up in the exact place in a video that you were watching in Chrome or whatever. It's very nice. When on an iPad, I have always had to be careful when multi-tasking not to stretch iOS too far (,i.e. go back to the app that I want) to keep the information persistent (and then switch back to the app where my current focus lies), otherwise the OS will drop the cached info and when I go back it refreshes the page and wipes all the progress I have made. I have noticed this the most in Safari. I have always attributed this behavior to iOS not having more RAM. I am not sure if this is the 'complete reason'; it probably is not. I am not a programmer and so I do not know the inter workings of these particulars when programming, but what I can tell you is that it is nice not to have to be so timid when traipsing around the apps on your device, multi-tasking from this process to that.
Battery Life--
Battery life is better on iPhone 6S Plus, for sure, but if it's between certain enhanced abilities on the Nexus versus a longer battery life with more curtailed actions on the iPhone, I will gladly suffer having to be battery conscious over not being able to do what I want to do. The Nexus with Stock Android behaves more like a computer where you can get apps from wherever you want, not that you will, but you can...and that's a nice feeling.
App Store--
Why can't iOS have a security toggle that allows you to 'get apps from other sources' or something similar to the way that MacOS handles that issue? Why do I have to go the route of Jailbreaking the device or the long way around of installing a 'profile' for each app developer that has an app that I would like to run? There is an easier way to do this. It's not that I mind installing security profiles, but why does the process have to be so arduous?
Messages--
Now this is something that Google needs to nail down. There have been a lot of supposed solutions with nothing really taking care of the thing: Hangouts, Messenger, etc. Can we have One App that handles all of our messaging needs kind of like iMessage does for iOS? Apple 'sandwiches' the phone number and the Apple ID to create this cohesion (out of sight) for the user. Did they copyright the process? Probably. Is that why Google has not done something similar with the phone number and your Google Acct.? Even within Hangouts all this is separated for the user: SMS, MMS and just plain ol' Hangouts. The user has to choose which he/she is going to send. They have to be conscious if their user is an iPhone user or Android and choose the correct channel. This is ridiculous. Hopefully the Allo app that Google is about to release will change all this. We'll see. One thing if for sure: Messaging needs to be simpler on Android. The user just needs to type, add media if they want and send to one user or many, period. Yay, for iOS. You do this perfectly.
...On with more testing......
Ciáo!