I have them both, and enjoy them equally. They each have pros & cons that offset each other.
But even before the first iPhone & Android phone, I've maintained multiple lines and used two or more phones concurrently. Bringing in many different unlocked models from Hong Kong, the UK & other parts of the world.
While my first preference in computers has always been Mac, I also use PC's. I thrive off variety and being open to all platforms.
If Apple built an iPhone with a 4.3" display which is the exact size required to provide a true widescreen 16:9 aspect ratio, I'd promote one to my primary phone for most of my usage. Having used that size for well over a year on the different new Android models I've had, I find it perfect for me.
But I may be among a smaller group that use all the features a true smart phone offers. I'm so mobile the larger (than an iPhone) display works great for the web work I do. The tiny 3.5" of my iP4S, not so much.
The iPhone is so refined and integrates so well with my own Mac Eco System, I'd sure like to see Apple offer the features I could put to good use.
In the last year the Android Apps have progressed a lot. Now on many occasions Android versions of Apps are released before their iPhone equivalents.
Overall you can't go wrong with either, or Android wouldn't be as popular as they are.
I suggest you evaluate each platform very closely and take what you read with careful consideration.. Forums are filled with passionate users of each and may not fairly represent the facts. As always it's buyer beware.
Good Luck
