MW, LW, and FW are all pretty awesome.
I am really digging LHW as well. Between Jones, Cormier, and Gus, the top 3 is certainly fun. AJ is a great wild card fighter to have in there as well. I honestly can see Gus/ Cormier/ Jones title picture thing go on for a little while (if Jones takes a loss in the next year or 2, who knows). Then you still have Davis, Glover, and Rashad to keep the division fun.
WW is a pretty great division too right now. Especially once Condit is back in the mix.
HW, BW, and Flyweight are of little interest to me though.