I've read samples of all the ones I wasn't already familiar with and really all look interesting to me. There is definitely a big difference in lengths between some of these and I wonder if it may be the biggest variety of lengths we've ever had in a single month. I'm up for any of them though, although with the 1,000+ page Neruda I'm assuming Bookworm_Girl means, similar to the Longfellow, for us to read a sampling of the book of our own choosing rather than the entire book of poems. So with that in mind, my votes are:
-1 to The Taste of Words
-1 to The Poetry of Pablo Neruda
-1 to Goblin Market and Other Poems
-1 to Don Juan
-1 to Idylls of the King
-1 to Rime of the Ancient Mariner
-1 to The Notebook
-1 to Sweet Bean Paste
-1 to A Month in the Country
I'm afraid that leaves Longfellow out to pasture but if that wins I'll be happy too; I just couldn't give a vote to them all.

I'm also afraid this means I'm more or less leaving it up to others to choose the selection this month and I'm looking forward to see what wins!