With Silva, Henderson, Rampage and Shogun coming over it has to be LHW. Without all the pride guys coming over, I would have said ww, no pride guys have come over to the ww division.
HW: Randy, Gonzaga, Sylvia, Crocop, Arlovski, Nog, Vera, Mir
LHW: Q Jackson, Henderson, Liddell, W. Silva, Rua, Babalu, R. Evans, Bisping, Forrest, Jardine, Tito, W Gouveia (sp)
WW: Serra, Hughes, GSP, Kos, Fitch, Diego, Swick
LW: Sherk, BJ, Stevenson, Tavares (I think he's gonna have the belt at some point), Huerta, Guida, Garcia, Etim, Franca, Kenflo, Guillard, D Thomas, S Fisher, T Griffen and Nate Diaz.
I would like to stand up for lightweight being closer to WW and HW than people think (tons of depth), at least in terms of great fights to watch. Just like in boxing there are not as many highlight-reel knockouts in lightweight, but the fights in general are more action packed imo. Sorry to use a boxing analogy on a mmaforum (I am a very much converted boxing fan).