Dropped netflix after a few months, found nothing that interested me on the us version after a month or so and the uk selection is very very poor at the moment.
Tried lovefilm and found anything I rlwanted to watch was disc only, the whole point in an on demand service for me is to remove that element, the quality wasnt as good as netflix either.
Have a now tv free trial at the moment now then half price for a few months - it's ok, probably a slightly better mix of films on there but I wouldn't be paying the 9 quid a month they want thereafter.
I imagine all these services will be vastly improved within a couple of years though