I would definitely say a dirty bathroom. Like who the fuck wants to use a bathroom in a dirty bathroom? If your bathroom is dirty, that's indicative to your whole mindset. Like if your bathroom is dirty, oh I'm not eating out your kitchen.
I would definitely have to say I hate a dirty bathroom more. My car though on the other hand can get pretty gross before I feel like the need to clean it. My bathroom though I have that on a weekly daily schedule of cleaning.