The Lightweight division is where it's at for mine. Apart from Aoki and arguably Eddie Alvarez and Kitaoka they've got all the big guns in the UFC. BJ Penn, Frankie Edgar, Kenny Florian, Gray Maynard, Nightmare Sanchez, Sean Sherk, Tyson Griffin.
A bunch of rock solid second tier guys like Joe Stevenson, Jim Miller, Clay Guida, Roger Huerta. Miguel Torres is also looking to make the move up too. Seriously stacked division, the exact opposite of the HW's right now. Love every LW fight they put on any card these days.