I don't see how people don't find LOST boringly predictable. My brother and a friend of his were really into it. I was bored and watched like 2 episodes with them, didn't see what the big deal was.
The last TV action drama that interested me was Jericho. In general I don't think Network television can do action dramas. 24 also bored the hell out of me.
I liked HBOs Deadwood and the first season of Rome, but the second season wasn't so good. Deadwood kicked ass but got cancelled for some bullshit show.