In terms of US series's Lost is by far and away the best thing on tv, it wins awards worlwide year after year. I stopped watching it season3, got boring, but got back into it after recommendations from friends. I love Sci-Fi and that is the reason it has got me addicted now, impatiently awaiting the final season. Sh*** all over stuff like Prison Break, Heroes, even dare I say it 24. Honestly, dont diss it if you aint seen it...esp if you only watched 1/2 seasons, there is a reason they're in season 7 now witht the highest audiences!!
Anyway Soprano's was the best thing to come out of the US.