Camera
The Lumia line has some of the best o ptics in smartphones to date. I really enjoy using my 1020 as a camera but with the added benefit that it performs just as well as a phone and digital assistant. There is a true sense of value here.
OS
Part of its charm is its simplicity, but this results in a fluid experience that makes using a device intuitive and almost second nature. I briefly had an S4 Active before returning to Windows Phone. In real-world usage the Active was not user friendly and for someone that does, on occassion, wake up their phone while driving to interact with it I found Google Now and S-Voice to be useless. I push the Windows button and I get a prompt to say a command. Sending my wife a quick text and having it read back to me is spiffy. However, the real benefit is when my speech is recognized and there is not a half-assed transcription of what I said.
I have a nasal tone present in my voice, and it likely will be there for most of my life. Windows Phone understands me. Google Now asks me to repeat constantly.
Apps
While there is a disparity in the number of apps, I find that quality apps do exisit for Windows Phone. There are proven developers and development teams out there with strong titles under their belts. I support them with my wallet and hope they continue to provide great programs in the future and actively support what is currently available. Most of the applications that I am missing from Android are Google-specific and can either be replaced by a Microsoft alternative or simply overlooked.
Skydrive
I know there is Dropbox, Google Drive, SugarSync and more - but they can't hold a candle to something that is native to the mobile OS and desktop.
Outlook
Outlook.com email, visually, is more appealing than Gmail. Of course that is my opinion and you are entitled to your own, whether it shares this sentiment or you disagree with me in full or in part. There are more privacy features, blocking solutions and tight integration on mobile and desktop.
Office
OneNote is fantastic. Indespensible is another word for it. Since I'm 100% Microsoft, Id ont' have to concern myself with cross-platform compatibility and use third-party solutions like Evernote which are less secure. I use it in the office and at home. Seperating the two is also essential and having multiple notebooks for this reason is great.
Nokia
The only Windows phone I ever mention to anyone is a Nokia phone. While I have considered trying an HTC variant in the past, the sellers typically want more than the current market value and I wouldn't risk an upgrade for something that might not work out for me. HTC makes some solid devices though my experience with them has been primiarly with Android.
On the flip side, I have owned a 900, 920 and now 1020 on the smartphone side from Nokia. Previous feature phones from years ago were built with the same approach to quality and overall product integrity. You have to intentionally beat up these phones before they start to give up.
The future
Google has fragmentation. Blackberry has an uncertain future. Apple has been painted in a corner trying to recover lost marketshare from Google. Microsoft has just begun a facelift of its mobile operating system. By comparison we are in the 4/4S phase of the iPhone with our devices. We've had our Gingerbread release and now we are working on Honeycomb and eventually Ice Cream Sandwich.
Windows Phone is not home to hundreds of different devices running the mobile OS. It's ecosystem is more than one flagship model that gets revamped annually and proports to have invented technology that has been in use for years prior to its release. We also don't have a company on the verge of downsizing and spinning off portions of its company in order to diversify and remain relevant in the mobile space.
Google paints the marketplace with broad brushstrokes, making many waves of color and saturating the market with its hue. Apple likes to think it made its own special color, but in reality it is just a combination of CENSORED and CENSORED. The colors Blackberry used are starting to fade. Microsoft tends to use fewer, more focused strokes and adds more paint to the brush when necessary. They don't go back and repaint over the same spot. Microsoft's canvas make appear to be empty, but in actuality they have more room to work with than the rest. I expect great things because they are positioned to do so.