What gets hate or love tends to vary a lot from community to community. Some trends I've seen : NTR, feminization, femdom, games with artstyle outside "the norm" (Light of my Life got mentioned a few times already, they're hardly the only one), slow-burn games - especially in early development...
There's been so many that have been either outright abandoned, or put on eternal hiatus...
I'm gonna be unoriginal here and put my lot with the following ones :
Proud Father
Buried Desires
Apartment69