Which Poirot stories would have worked better/worse in the other 'era' of the Suchet series?

I often think about how interesting it is that the ITV Poirot series is split down the middle into two very distinct eras.

The early series have an ensemble cast, a lot of light humour and subplots, and great attention to detail with sets and props, while the later episodes are often darker in tone, a bit more 'polished' in terms of cinematography, and generally feature a lonelier Poirot with only occasional recurring characters like Mrs Oliver.

Are there any episodes from either 'era' of the show that you think would have worked better in the other style? What kinds of changes do you think we would have seen if certain episodes had aired earlier or later than they did? And conversely, are there any episodes that you think would have been worse in the other style?

Personally, out of the earlier novel adaptations, I think stories like Lord Edgware Dies, Dumb Witness, Murder on the Links and Death in the Clouds are very suited to the older style. Meanwhile, I would have been interested to see Hickory Dickory Dock done in the newer style, as I think something about the ITV adaptation of this story just doesn't quite work.

Out of the later episodes, I can't imagine Cat Among The Pigeons, Third Girl or Cards on the Table working in the earlier series, but I think The Hollow, After the Funeral, and Appointment with Death could have been interesting to see in the older style (although I do somewhat like the versions we got for The Hollow and After the Funeral).