Every OS in the market has its own share of strengths and weaknesses. I believe in the "whatever floats your boat" school of thought when it comes to choosing a smartphone. Still, evaluating the popular platforms looked like a good idea to me. I have given points to each platform based on the following factors:
Features - The rating in this section is based on the support offered to technologies such as NFC, USB-OTG (On The Go), FM transmitter, and stereoscopic display.
User Interface - Here, the contenders get points for user friendliness. Lesser the magajmaari, better the score.
Aesthetics - It's all about eye-candy these days. An uncluttered and seamless look helps in getting a better score. Originality wins brownie points as well.
Optimisation - If the OS is optimised, it runs smoothly even on a CPU under 800 MHz and with 256 MB of RAM. If not, it requires dual cores and a gigabyte of RAM.
Battery Life - Do I really have to explain this one?
Apps - This is about the number of apps available for each platform.
Freedom - Includes aspects such as file sharing, customisation, file management, and the availability of mass storage mode.
Here's the scorecard. Note that all scores are on a scale of 1 to 5. The top scorer in each category has been circled in red.
As you can see, there's no clear winner. However, BlackBerry has lost the contest by a big margin because of its average performance across the board. Android is good, but suffers badly from dismal battery performance and due to its resource-hungry nature. Surprisingly, the black sheep of the OS family, Symbian, turns out to be the most mature OS by virtue of getting the basics right - all thanks to the Belle update. Its fans need not celebrate though, as it has no future.