@cat you really couldn't be more wrong, that is in fact why ER ran for 15 seasons and why it was such an amazing success. Its because it was based on reality that people loved it, it was humanity in its most vulnerable state, facing unconscionable decisions and tragedy everyday and going back each time to do it all over again because thats life in an ER. And regardless if you are a fan of the series or not, to completely discount it, and just say you are a fan of Grey's, is really short sited. Grey's wouldn't exist if ER hadn't come around first. Everyone knows that. Also, Grey's has long since overstayed its welcome on air. You gotta know when its time to put a series to bed, and its time they call it a day.
First of all, Scrubs wasn't a medical drama, it was a comedy, so it doesn't even belong on this list. Secondly, Grey's Anatomy is soap opera trash compared to the groundbreaking powerhouse that was and will forever be ER. Also, to say it only qualified because of vintage Clooney, is ridiculous considering the show ran for 15 seasons and Clooney was only on for the first 5.