I can't decide which format is best. Both bring their own value to the poem. I had to read it in both formats a couple of times but still can't decide. I find that the stripped style enables you to use different tones when reading the poem out loud. I find it helps to seperate different variations of the meaning. I also find that the stripped style enables the reader to spend more time and gives greater emphasis on different parts of the poem. The centred style is probably the style that most of recognize the most. It can be read off first time with greater ease.
The poem itself is lovely and when given thought creates emotion which is what every poem should aim to do.
Thank you for sharing it with us.
p.s I can't upsteem as I am out of power otherwise I would. I have followed you and look forward to similar posts.
Dan