About 2nd BSG that show deteriorated after they left New Caprica to me. It stopped being about stuff happening and, became people recounting events. About the only thing that happened that wasn't forced was the mutiny and, they screwed that up by keeping Adama alive. Then to get the "bad" Cylons fighting the "heroes" for the finale they had to force things unrealisticaly. "Oh, it just so happened that a character that died previously was a Cylon too! and, Sharon just so hapened to get her hands on a box plus, sleeping juice. Oh and, Adama just so happened to have enough crew to pilot Galactica into a suicide save one little girl mission."
The final episodes of the series was mostly staring at cracks in the wall and, watching paint dry. While people cry, use the restroom, and throw up... Yeah....
I don't know about 1st BSG though. Haven't watched much of it. Mostly clips of the fighting scenes...