I voted for both "CSI" and "CSI:NY". CSI mainly because of its earlier seasons (1-8), and season 12 because I'm sure Danson can revive it. Its always had a great mix of characters, socially inept genii like Grissom and to a lesser extent, Sara. Tough women like Catherine and Sofia, and characters like Riley, who brought the show alive for me (she left way too soon!)
CSI:NY for seasons 1, 2, 4 and 7, and its ability to transition leads without any disruption to the flow of the show. Its also got a unique New York taste to it, and having such a great cast can't be a bad thing either.
I love Miami too, but compared to the other two, its terrible. Adam Rodriguez/Delko completely ruins the show for me. They should've kept going the way were with season 8 rather than reverting to the crap from seasons 4&5.