If you go by page views and incoming wikilinks, the comedian would be primary with respect to usage, at least right now, but the artist/sculptor might well be primary with respect to long-term significance, notability, or usage in reliable sources. Someone could always submit it to WP:RM and see what happens, but their backlog is running into January at this point.  Assuming there is *no* primary topic here (and I don't have time to look at RS), a disambiguation page might be the least controversial, but at the very least, the comedian's article should have a link to the artist's article at the top, which it does not right now. https://en.wikipedia.org/wiki/Rachel_Feinstein_%28comedian%29