1795 sort of peters out for me. That's unavoidable when [spoiler]most of the characters have died off, but at least in 1897, the deaths were clustered together right at the very end. Without an extension of 1897 beyond whatever they'd planned we wouldn't have had Petofi, right?
Besides, 1795 looks as if it's going to show the horrible story of Barnabas becoming this creature, but then good Barnabas continues through vampirehood all the way up until the "end". I expected some traumatic showdown where he's entombed by force. His agreeing to being destroyed seems far more in keeping with what the audience may have wanted of him by then (he had become a popular and sympathetic character) than with what Barnabas was actually supposed to be turning into at that point.
This makes it all the more disconcerting when we return to 1967/8 and Barnabas proceeds to hover between nice and nasty for what seems like forever, sometimes being "good" too soon and without adequate explanation, sometimes backsliding into nastiness long after the cure and long after becoming this protector of the family.
Anyway, I think 1795 may have suffered from an improvised or changed ending too, and I probably prefer the end to 1897, even with problems.[/spoiler]