For my tastes, the Vegas original is still the best. Hubby and I have been watching from the get-go, ever since we found out that William Petersen was going to be in this series that sounded similar to his work in "Manhunter" (which made us Petersen fans). And we've been watching ever since. The original cast is one of the best ensemble casts ever assembled, and I thought I would stop watching once Petersen left. But I have found myself pleasantly surprised by what they've been able to do with the series since his departure. Hubby and I may be the only ones on the planet who actually liked the 200th episode ("Mascara"), but we both appreciate the guts it's taken to take the series in a new direction, while trying to maintain some of the familiar threads that made us fall in love with the series, to begin with.
I really, really, really tried to like Miami in its first season, but between David Caruso's posturing and the frantic "Let's impress the audience with our cutting-edge camera angles and editing," it just works my last nerve. I've watched New York a couple of times, and it's actually fairly good, but for whatever reason I just can't warm up to the characters the way I have on the original.