Could CSS selectors, with a few minor extensions, be just as good at XPath for this kind of thing?

I guess a lot of the reason I find xpath frustrating is my usage frequency corresponds exactly to the time needed to forget the syntax and have to relearn/refresh it in my head.

If CSS selectors needed only a few enhancements to compete with XPath, it might be worth enhancing a selector library to enable quick ramp up speed for more web people.