I'll also watch both. The men's is more interesting to me if in the high likelihood that it's Djokovic-Nadal, but I will say this for the women. That tournament overall has been far better than the men's side, especially since Federer went out and it has become abundantly clear that we were getting a Djokovic-Nadal final. I caught parts of Nishikori's 5 setters and Tsitsipas's matches with Federer (obviously) and RBA, but aside from that the tournament has been horrendous so far and has had such an air of inevitability about it where the Djokovic-Nadal final is concerned. The final is likely to save the men's tournaments, but the women's overall (including the upcoming final which is likely to be great) has been far, far better.
And I loved both women's SFs last night as well, particularly Osaka-Pliskova.
I honestly haven't watched either of Nadal or Djokovic much at all. I tape the matches and go to bed, and then fast forward them when I wake up to see if they were at all competitive and if they weren't then I didn't watch them.