I hate that question. I refused to ask it when interviewing people for my team! I preferred to ask in what area they were hoping to get development opportunities if they got the role. People would then give better answers like improving presentation skills, drafting proposals, negotiation skills, technical understanding etc.
If I ever get asked it in an interview I'll just frame my answer as above. I think people tend to feel like they have to state a personality flaw which I think isn't necessarily relevant.