I don't know much about Chopin and Liszt's thoughts of one another much. Hwoever, I know that they were friends, and occasionally rivals. Also, Chopin's Etudes were dedicated to Liszt. (Excepting the Nouvelle Etudes). I also know that Liszt did a set of transcriptions of Chopin's Songs, entitled "Polnische Lieder".
What else? Are there any letters of Chopin and Liszt talking behind each other's backs? What did they say? Was it mainly positive or negative?
Also, what pieces did Liszt dedicate to Chopin? I know "dedication" isn't actually a big deal, but Liszt was a generous man, so I'm sure he did something to replace Chopin's kindness. (?)