Favourite? I don't know... Blake? Poe? Various Japanese classics? Currently reading "Paradise Lost" by Milton. But what I've probably listened to most, lately, is Kate Tempest:
I know now, first hand,
That regretting love will empty you
Of all that makes you love
And all that lovers pay attention to.
(Verse from "Best Intentions", Kate Tempest)
It's interesting to see that many seem to have fallen in love with poetry that's been translated to English. While there's nothing wrong with translation, I do think it is a little curious that some seem to prefer translated poetry, to native language authors (Much as it'd be a bit curious to hold up Blake as one's favourite poet in Spanish). At least one should make note of not just the original author, but also the translator -- as the end result is very much a team effort.
[edit: Somewhat apropos, perhaps:
https://www.youtube.com/watch?v=DktpzYOHTXo ]