I'm in a seeming minority that enjoyed the old show that, admittedly, I grew up with and BSG 2004.
The former was a product of the times but suffered the same sort of flaws that would happen in similarly targeted family-friend shows of today - it had it's own Annoying Kid/Jar Jar (Boxy and Muffet the robot-ape-dog-thing), shocking techno-blags, appalling support actors (not to mention somewhat teak-like main actors). But there was always a sense of prevailing optimism, and heroes were heroes as opposed not dysfunctional man-children, an obligatory alcoholic main cast member, or psychotic nymphomaniacs.
Whilst the latter sometimes degenerated into misery TV - the point often missed in dark series is that against a background of apparent despair hope shines all the more brightly, increasing the poignancy of the moment. There was more of a sense of life aboard a naval vessel than the flying plastic city of the 1970s complete with pastelles.
My hope is that the new motion picture aims somewhere between the optimistic heroics, campness and suspciously Mormon-like super-aliens of the original; and the grim, dystopic, occasionally rapetastic recent series.