Before we get carried away, keep in mind that even if there is some intrinsic good within every human that may be covered and hidden by 6,000,000 layers of pure evil, when someone says they like that person and gives examples of why they like them, they are making it clear they aren't valuing them for the hidden intrinsic good but for persona or achievements that person has.
I'm no expert in Christian theology, but I'm comfortable in saying anyone who says "I like Hitler because he invented microphones" isn't doing that because they are a good Christian.