Looking through the reference to ui-router (https://github.com/angular-ui/ui-router/wiki/Quick-Reference#ui-sref) the following is said about ui-sref:
the directive will automatically generate & update the href attribute via the $state.href() method
All things considered, this essentially makes ui-sref a full replacement to href: not only it works with states, but also takes care of url.
Does it mean that in an angular ui-router app it is best to avoid hrefs even for global, SPA-wide pages and use ui-sref exclusively for navigation?