Watching CSI is getting a drag for me IMHO. I stopped watching after the Season 5 finale. I don't even give credit to the spinoffs (NY and Miami) that much, since they're pretty much the same thing.
24 however is a different story; it always keeps you in the edge of your seat and the plot twists, sudden character deaths just make it even better. They won Best Drama Series and Best Lead Actor (for Kiefer Sutherland) in the 2006 Emmy's! All I can say is: 'bout damn time!
Jack Bauer rules indeed!