Just finished Homeland season one after starting it on Monday night.
Excellent pilot and terrific performances but kinda fizzle out at the end, it didn't finish strong. It was more resetting the series for the new season whereas Breaking Bad's second half built up to a satisfying climax.
What likely happened is Downton Abbey, Boardwalk Empire and Game of Thrones nabbed 30% of the vote, Mad Men and Breaking Bad spilt voters and third choice Homeland won.
It is a great show and I recommend it, keeps you guessing and there lots of twists. Still I would rank Breaking Bad S4 as the best of the year followed by Mad Men and then Homeland.