ah, i see. Ive been going pretty corruption heavy so ill prob kill him. I have another question tho, there was this girl that worked alongside klaus with the blue hair i think. She had this power where she could cut u in pieces. You could also spare her and i chose that option. (she was going to live with either option in that moment). But later on when we meet her again she questions why we did that and there was an option because we wanted to build a harem or something like that
and later on in that same arc, our character left her alive again and took out her eye for that single purpose to make it easier to take her, i suppose. But i havent seen her since and dont remember her being killed either, does she come back? or did she die when klaus died
You are talking about Danica and she has content past Klaus' defeat. She has 4 scenes, 2 of them are sex scenes.
You get the sex scenes no matter if you eat her or not.
And to answer your other questions,
There is no good reason either for or against eating people.
People have talked about possible Mia romance in regards to Jake, but as of right now, it doesn't exist.
Kenny only has some content if you eat him but it's negligible.
The corruption gain is minimal, it's literally 5 points for the 4 named characters (Kenny, Danica, Jake, Bailey)
The content you get from letting them live is not very important.
You may or may not find the alternative content (after eating them) better. It's also minimal.
Eating them doesn't give you any other stat boosts, just corruption.
The only one who is exempt from this is Bailey, because if you don't eat her you lose her forever.
Finally it's recommended to eat everyone if you are on a high corruption playthrough because the monster insinuates that it's important to do so. It may be bullshit or it may be important, we don't know, but it's the only indication we have.
Personally I like the idea of high corruption so I tend to pick the choices that increase it, so even on my "good guy" playthrough I eat Kenny and Bailey at the very least (monsters and thugs too when possible). But the best we can do at this point is to wait for v1.0, to see the extend of the changes, before deciding what playthroughs fit us best.