I watch them all, for better or for worse. This is probably Idol's last chance, though, to do something new and different. The Voice is more entertaining. X-Factor is, well, not sure. The Sing Off is my favorite, but that only lasted like 6 episodes this season (after a two year wait!). ....actually, I think America's Got Talent has to be the most entertaining talent show out in America right now.
I really liked the Sing Off season that had Jerry Lawson on it. Not as much after that, but it is still amazing to me that these groups are performing without instruments.