I don't know what it was with Christie, she didn't seem to like even her own characters. Fortunately, the writers for the series had better sense. Pauline Moran made the perfect Miss Lemon. She wasn't some skanky thing, but she wasn't ancient, either. She went from having an 'office crush' on Poirot to genuinely caring for him. For me, I don't even read Christie. I prefer the series and the movies. As far a s the man himself, David Suchet is THE Poirot.