Season 2 annoyed me, but I stuck with it. Then I tried to watch Season 3, but gave up after 3 or 4 episodes. Gaining powers, losing powers, dying, not dying... where does it end!? And all the while, who are the "heroes" actually saving? Urgh. It just feels like they now have no real idea of where to take the stpry. I like the feeling that the writers are a step or two ahead, not just coming up with ideas for the sake of it...
Sorry. Don't mean to hijack your thread for a rant, but I'm looking forward to reading the breakdowns to see if it's worth catching up with again. Spoilers be damned!