Well the mamono involved with the sabbath would be annoying. I ain't gonna judge the lolis and lolicons, since they are consenting adults in everything but physical appearance. But I'm not going to participate nor do I do I want to deal with some street preaching familiar or baphomet.
Alices who haven't gone to wonderland however is where I draw the line. They're still a child both physically and psychologically, which is not ok.
I also dislike Hunpty Eggs, largely because your basically fucking a fetus and that's just all kinds of wrong.
Mamono with tentacles are tolerable so kong as they remember that I don't like being on the receiving end of but stuff like that. Excluding the mindflayer because stay the fuck out of my brain.
...I think that's it.
MineFlayer without a doubt, as much as I'd love to have a hottie like that, I'd rather not be a mindless squid for the rest of my hentai cliche life.