Sure it's one man's opinion, but that man is ZDNet's Matthew Miller who has quite the experience with mobile technology, often owning multiple devices with varying OSs. From that perspective and long lineage of knowledge, Miller has come to the conclusion that Microsoft's Windows Phone 7 is the most solid operating system when compared to iOS, Symbian, Android, BlackBerry and webOS:

"Zero! That is how many times I have seen a reset on ANY Windows Phone 7 device that I have been using in over a year. During that time I have used at least six WP7 devices on all four wireless carriers. This includes running the early tech preview on the first WP7 device all the way through the latest RTM version of Mango I have on my HTC HD7. I even have the Dell Venue Pro, with a 32GB microSD card in it, that has been rock solid stable even though I have read a number of reports of issues with that device. I don’t know if I have just been blessed with an uncanny knack for using stable WP7 devices, but from what I read online there are many more customers just as pleased as I am with the stability of Windows Phone 7."

Miller's thoughts on WP7 as well as the other operating systems are informative, precise and telling. We know we're sort of preaching to the choir here as Miller's experience mirrors or own (though we have less experience) and we bet our readers are in agreement, regardless, sound off on comments with your thoughts!

Source: ZDNet; Thanks, Tim, for the tip