If you use Chrome on Android and on you desktop/laptop, you get bookmark syncing, tab syncing, and password syncing. Chrome on Android also has a couple nice features like data compression which makes it so your browser uses less of your data. I think that the stock browser ("Internet") isn't very good. Chrome is much better. The choice is not permanent, you can uninstall Chrome or go into the settings and clear Chrome's defaults and Android will start asking you which to use for every link.