I know of two good ones:
1) Ky Kiske's Heroes 201 is the best: it features all the heroes of the VI early, high and late campaigns, their year of appearance, their job and their stats. Unfortunately, it does not include the heroes of the Viking Invasion Campaign. You can find it in this thread: MTW:VI Heroes List
2) Nefarious heroes listing lacks the heroes stats, but comes instead with a number of historical snippets taken from the game files and it does have the heroes of the VI campaign. The list comes as part of a information pack by Nefarious. It is not available on the internet, but you can mail Nefarious about it. You can find his address in A Beginners Guide to Medieval: Total War by Frogbeastegg, section 1.1: useful resources.