At the end of the day, all OS's borrow heavily from each other.
It's the one who executes them the best that is what you need to worry about.
Although it's completely subjective which you like better, Apple sell the most per phone. Each Android phone has a custom version of Android, and no particular brand of phone has customised a version that people like more than iOS. Otherwise the iPhone wouldn't end up being the best selling iPhone each year, with each new version,
All phone companies use Android differently, which can be counted as a separate OS. I mean Mac OSX is just a variant of Linux, but you don't see Apple fans including all Linux users along with Mac users?
I mean a Note 3 is nothing like the HTC one and a Galaxy 5 is nothing like a Nexus. Bear that in mind when it comes to overall software.
[It's 6am and i haven't slept yet thanks to a headache so don't count on the validity of this post, I'm just trying to get super tired
]
It sounds good ATM