I never watched Lost so can't comment on how it compares to FF, but on the whole FF seems to be holding its own, especially with the sense that the visions people have seen are not all that they seem/can be changed. That said the last episode was full of the personal melodrama, which was just about worth hanging in through for the revelations in the last couple of minutes. :D

S7 NCIS is definitely an improvement on S6, and Burn Notice can be quite fun. Warehouse 13 has its moments. I tried SGU twice for about 10 minutes each time before turning over in boredom.

That said I have no show that I am obsessed with... may explain why my Atlantis muses are so active at the moment. :D