"would you let your little sister date Spike", whilst endorsing Buffy/Angel

Yeah - it's sort of "would you let your little sister date a potential rapist, or would you prefer her with the guy who stalks her mother and tortures her surrogate father?"

In my opinion the better question would be "would you like your sister date a guy who will lose his soul because he loves her? Or would you want her to date the guy who will love her so much he'll earn his soul back?"