As the mobile device market continues to grow, operating systems keep innovating and coming to life rapidly. With so many choices in terms of which operating system is worth it for customers to become loyal to, it's hard to tell just by looking at them which of the big three, iOS, Android and Windows, is right for you. Perhaps some answers can come in the form of how each operating system is selling.

This year, Android and Apple's iOS are expected to grow in shipments while Windows devices are predicted to fall. ZD Net reports calculations from analyst Gartner says 866 million Android devices will ship this year, up from 505 million from last year. Meanwhile, lagging behind the most popular operating system in the world, is Apple's iOS, which are expected to ship 296 million. That number is up from 212 million from last year. As for Microsoft, although shipping more than iOS, Windows phones will ship 339 million down from 246 million from last year.

Next year, if all continues to go the way its going now, Android will hit 1 billion devices shipped compared to 278 million Windows devices and 354 million iOS devices.

So, if sheer numbers are enough to tip your scale, Android is the phone for you. Gartner VP Carolina Milanesi said the real test is the relevance that each operating system has on the device of the user.

"Apple is currently the more homogeneous presence across all device segments, while 90 percent of Android sales are currently in the mobile phone market and 85 percent of Microsoft sales are in the PC market," she said in a statement.

PCs, desktops and notebooks are likely to decline 10.6 percent this year from 2012. Even when "ultramobiles" such as Chromebooks and hybrid devices will still only save the PC market a little bit. In the end the PC shipments will decline 7.3 percent.

Meanwhile, tablet shipments are expected to grow 69.7 percent and the mobile phone market will reach 4.3 percent growth. While these numbers show which operating system is likely to be the most popular in the future, choosing the right one is largely an individual choice based on a user's device and personal needs.