I report my site's browsers statistics at the begining of each month which are based on DOM object detection so my statistics are much more accurate...
Granted my site is mostly technical.
Chrome has only gained that much market share because people who aren't smart enough to click on CUSTOMIZE buttons for software installation have Chrome replace the default browser. Everyone bashed Apple for doing that with Safari though there's no outrage about Chrome doing it? Talk about hypocrisy!
WebKit is a good rendering engine though like any other it has it's share of obnoxious bugs. These days it's no long is your browser supports a feature though if it correctly supports a feature.