For me, it's the other way around. Summer/Winter H-scenes are mediocre to awful and you see more of the kid's body than the woman, something that, in Dojo's case is optional since you can make the guy transparent. Hell, Summer/Winter do not even have a zoom option and the extra panel achievement mostly focus on the ass of the character and not her entire body.
In Dojo, even the neutral position, without any button pressing, is a H-scene in itself since the character is able to do outercourse, something that very few creators take advantage of. Winter memories doesn't have that, aside from those inter dialogue moments which isn't exactly the same thing as previously mentioned.
Story hardly count as advantage for the Summer/Winter series when most of the girls react and throw themselves at the protagonist in the same way. It's too much sweet, especially with cheating involved, which should spicy or dramatic.