I like this best of the first four too, but like many others have commented, it still doesn't do a
lot for me. It's interesting and a little surprising, and uses language quite well, despite its bumpy meter (which, frankly, might be intentional).
I also agree with Nemo, however. There was a memorable dementia poem in last year's sonnet bakeoff (Max Goodman's), and Barefoot Muse just put out an anthology about dementia / Alzheimer's poems (
Forgetting Home), meaning that the subject has, at least for our crowd, become very familiar.
Still, this entry is unique enough to make it interesting. Interesting enough to win a bakeoff? I'm not so sure.