I would go with Soprano family..

Dexter, Season 5, 10/10

Though somebody might say this season was not as good as previous ones, I loved it. Quite emotional the finale was.

I would say that 4th was better ,too. But the scene with " autoerotic mumification" in 5th season, was awesome. 

Friends, Season 1, 10/10
I finally got round to watching this fabulous series in English 

Breaking Bad, Season 1, 8/10

the big bang theory, season 3, 9/10

how to make it in america, season 1, 7/10

Top serials is CHUCK, True Blood, Vampire diares, Spartakus

Sex and the City, Season 4, 8/10

Friends, Season 2, 10/10

Sex and the City, Season 5, 8/10

I just love British accent so I started to watch britcoms
1 The IT Crowd
2 Black Books
3 Yes Minister
4 A Bit Of Fry And Laurie
5 Comming Of Age
6 My Family
7 Hercule Poirot
then I like Red Dwarf, The Tudors and Skins but I have only watched them occasionally so I dont know these so well

I have some more series I havent watched yet but soon I will: Blackadder, Gimme Gimme Gimme, Extras

Sex and the City, Season 6, the last episode – second part. Abso lutely.

Dexter, Season 5, 10/10

I've just started watching Battlestar Galactica once again and I love it as well as I loved it three years ago. It's quite hard to understand them because they use a lot of scientific and specialist expressions but I watch it without any subtitles anyway 

As for Dexter, I finished the 5th season two weeks ago (ish). It's still as good as the 1st season, which makes me wonder because most series are worse and worse every new season.
I'm looking forward to the 6th season