Glad to be of help! I see your point on Koikatsu graphics in SiC, that can be a problem.I again thank you for that. I remember that one of my hold ups with Sharing is caring is that the graphical choice made a lot of the characters look very young. Younger than they really should given the story. Not that I don't like games using that engine, because there are a few that are really favorites, but that was a barrier with that one. I'll still check it out again.
As for the other, I'm never really looking for wholesome or romantic. Just consensual, hot and sexy where everyone is on board and no one is getting hurt or shamed. I've got zero problem with the female characters having sex with as many guys as they like, so long as the MC is involved and getting his share of action.
As for for your preferences concerning sharing/swinging, you will find it in both games! They have sharing paths way, way better than in MWAS. A tip for WDR, on your first run when the choice pops up take the stat boosts, not the snoop skill. You can get extra scenes with the snoop skill, but taking it can lead to easier, quicker NTR. The snoop skill has to be used very carefully and selectivly if you want to keep away from cucking/NTR. So for the first playthroughs (you will not see all on just one run) the stat boost makes romance and consensual hot sharing/swinging easier.
As Pr0GamerJohnny mentioned in his post, WDR´s mechanics are good, you have quite a bit of choices and events to do, which can develop quite differently. For example, even your wife´s workplace has major consequences on what will happen.