I didn't really like The Fame. I only like Paparazzi, Beautiful Dirty Rich, Starstruck, and Boys Boys Boys. I think every song on TFM blows all those out of the water though.
About GaGa calling it the best album of the decade-- I have to say it's up there for me considering we're only in the second year of the decade.
It's on par with Teenage Dream and Loud for me.