BSG is without a doubt one of the best tv shows of the last 10 years or more.
It is more politically brave and aware than The West Wing ever was and also written with more levels of detail (and i loved The West Wing). It is also more "real" than Star Trek could ever hope to be. The closest that show got was DS9, which of course Ron Moore was heavily involved with also.
No other show has dared go near the subject matter that BSG has covered in its run.
The actors are also top notch. Many were completely unkown to me before the show aired, but now you cannot imagine anyone else in the roles.
This is the very idea of unmissable television.
P.S. BSG now needs to be left well alone, the fact that they are considering a Bryan Singer BSG movie that is unrelated to this show is just plain silly and will never be anything more than a pale shadow of the wonderful, twisted creature the tv show is.