Obviously we all have different opinions and taste, but personally henteria have a super major problem, it's simply too long, the pace is too slow, also it's very generic for all main chars, the side chars on other hand is much more apealing in that aspect(i talking about HC3 mostly). All this fancy writing become boring to read at some point, i try to read the text in games and not skip it, but in Henteria i had a big urge to start doing it.
My main reason why NTRPG 1 and NTRPG 2 still on top (and hope whatever hatanaka doing right now, he back to his blog and post more copium about NTRPG 5

) because he wrote non brain dead MC. What I mean by that, he didn't make MC clueless bastard that at some point, when you play the game, you start questioning, "is this dude for real?"...
Maybe I just dont like that type of trope in general.
NTRPG 1 MC : Start being clueless, but ended up know about everything and become a cuck. Like, he start enjoying it (IMO)
NTRPG 2 MC : At the start, he already have doubt, and later he knew about it. But he powerless. Because not only he's weak, people around him also start getting corrupted. Thats why the ending hit so hard.
What makes me still played HC3, because the dev kept improving with dot scene (fricking love it), and dev didnt make HC3 one of those game, where the MC so clueless so they make the NTR scene only can be seen on reminiscence room (thank god for that).