Romance Readers Rendezvous discussion

When I first tiptoed into writing (historical) romance, I assumed that both lovers always had to appear on the cover. Once I started investigating, I saw many covers showing only one person or no one at all. Do you prefer covers showing both lovers, or not particularly?

I disagree with the above statement. I have only been traditionally published and all 15 of my covers are both the h and h

I ended up with both lovers on the cover, in a photo showing a nice emotional moment without a (for my particular story) inappropriate "clinch."