Here are the episode lists for each collection:
Collection III
| 1 | Treehouse of Horror III | ||||
| 2 | Treehouse of Horror VI | ||||
| 3 | Treehouse of Horror IX | ||||
| 4 | Treehouse of Horror XII | ||||
| 5 | Treehouse of Horror XV | ||||
| 6 | Treehouse of Horror XVIII |
Collection II
| 1 | Treehouse of Horror II | ||||
| 2 | Treehouse of Horror V | ||||
| 3 | Treehouse of Horror VIII | ||||
| 4 | Treehouse of Horror XI | ||||
| 5 | Treehouse of Horror XIV | ||||
| 6 | Treehouse of Horror XVII |
Collection I
| 1 | Treehouse of Horror | ||||
| 2 | Treehouse of Horror IV | ||||
| 3 | Treehouse of Horror VII | ||||
| 4 | Treehouse of Horror X | ||||
| 5 | Treehouse of Horror XIII | ||||
| 6 | Treehouse of Horror XVI |
The episodes in the collections aren't in chronological order, as you can tell. Given this, I'm wondering which collection seems most appealing? Or are they all appealing? I used to really look forward to the Treehouse of Horror episodes but I stopped watching The Simpsons a long time ago. Do the newer instalments match the quality of the earlier ones (i.e., the The Shining parody)?
Are any of these collections worth it?

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