Which is better CSS selector or XPath?
CSS is always better and faster than XPath. The primary reason is that CSS is much shorter and more reliable in comparison to its corresponding XPath.
CSS selector is also easier to read and understand. Having said that, there are some scenarios where XPath works best i.e. locating an element via text or locating a parent element.
My advice is to choose CSS Selector before XPath and choose XPath only in unavoidable situations.