MC could become House-warden in every dorm (except Pomefiore because Vil is too beautiful and all that lovely poison) but just doesn't
I mean come on MC fought Overblots with no power whatsoever and lived to tell the tale. anyway how i think they would go
Heartslabyul: Riddle's ultimate "scary move" has no affect on our plain human MC. could literally just get him angry enough to distract him then tackle the smol bean
Savanaclaw: Just offer Leona to take the responsibilities of Dorm Leader but he still gets to control all the dorm sports. (Also must offer lap nap privileges)
Octanvinelle: MC waits till Floyd's in a mood and offers to get Jade new terrariums. MC's outsmarted Azul before and can do it again, the eels are the wildcards.
Scarabia: Kalim could probably be convinced of anything, bless his heart. The trouble is making sure to keep Jamil as vice warden and take some of his workload please this overworked boy-
Ignihyde: Idia, if challenged might fight for it and give MC some trouble, he's got a competitive streak after all. But the moment its presented as a way for him to get out of socializing he 200% will pronounce MC Dorm leader and run away at Mach 3. (It won't hurt to offer playtime with Grimm too)
Diasomnia: Now my dear sweet Malleus. If he thought his friend really wanted it would hand the title over 100%. The real fight would be Sebek and having to deal with his screeching. Prepare Malleus merch to win him over, the more the better
Trey: Yuu, you can't steal housewardens and try to raise them.
Yuu: Why not! At least let me have Kalim! Jamil doesn't even fucking like him and he isn't teaching him shit on purpose so he is dependent on him!
Jamil:.........
Riddle: You may not have me Yuu, that is against Queen of Hearts Rule 473. Not to mention how moral and unethical this is, I already was raised by my mother and have been ingrained to have a strict schedule-*go's on hour long rant*
Kalim:....I don't mind, I would love to spend time with you *bright smile*