It's a pretty easy pick... TV has gone uphill since the 2000's (due to HBO, FX, AMC, Showtime, etc) while movies have at worst gone downhill and at best stagnated for the last few years. There might be 2 to 3 movies a year I like a lot (less that 6 hours), while there are over 8 shows a year I love.
I don't know how to answer this question. It seems impossible. I watch a lot of both. Certain movies would work only as movies, and ditto for the TV shows. 95% of TV is fucking horrible. A similar percentage of movies are too (though the bad ones tend to stay relatively hidden in comparison to their TV show counterparts).
It all depends on the day, the time and my mood.
Either way, the Netflix deal with Breaking Bad in the UK is fucking awesome!