This is my experience so take it with a grain of salt. Also, probably going to out myself to all the adcoms...
I do a lot of clinical research (conferences, papers, and the whole shebang) and classics research (think Aristotle). I've interviewed at most of the "top 10" schools and my classics research has been the focal point of most if not all my interviews -- even though my clinical research has been much more productive (it takes soooo long to publish anything in classics). A few of my interviewers commented that my classics research was "refreshing" and was very different. Even at highly selective basic science schools like those mentioned above, they reacted positively to my humanities research.
Point is, I think finding something you're super interested in/passionate about and pursing some type of inquiry or advancement of knowledge in the field is very valuable and appreciated. Not sure if this contradicts or corroborates what @LizzyM @WedgeDawg @Goro
have stated above. Nevertheless, good luck and follow what you love!