Golden Mean is my latest favorite. I know most people don't like it but it's a full family harem, MC and dad get it on with the girls, which I quite like, not much games like that around.
These is slow progress and then there is this game. Yes it's consisent but a few renders and an animation per update? I'd be too ashamed to push that as an update.
In the start when i descovered VNs I was mostly into mom-son and brother-sister but now I go for anything well-written.
And my favorite changed to father-daughter mostly due to Dating my daughter.