Neither,neither,neither. There are just a dozen too many of these kinds of shows on the TV. I don't care what 3 letters you call them, they are all 4 letter words to me.
i'm a fan of csi miami but i'm partial in that it's the only one i've seen more than a few episodes of. Im not a fan of how Heratio dances around getting back with his woman, but the aspect of his brother becoming so wrapped up in his work that he became his work is just too true.
I honestly don't watch either one but when I took a criminal evidence class back at community college told me that the original CSI show (Whatever it was called) was very accurate but the CSI: Miama was very exaggerated. (This was about six years ago though.