Ah, interesting question ! I never was a big poetry fan BUT lastly, I must "confess" that I like it much ! As I'm teaching many subjects, and so french littérature, I am more interested in poetry than before ! Arthur Raimbaud is a great poet, and as is Charles Baudelaire ! I'm surprised that you know this name but it's great !
But all those poets were victims of what they called themselves "Spleen" (yes ! in English !) and they were very depressed and have suicidal tendencies, or on the brink of Madness for some of them but french poetry has many great poets ! I'll try to speak more about them later ok ?