I'll rank the divisions in terms of perceived talent and contenders from top to bottom
155# - by a country mile.
170#
HW - could get pretty deep if everyone from Strikeforce jumps over into the UFC.
185#
205# - Hard to accurately place now that JBJ has ran through the entire division, and all the previous contenders are kind of old.
145#
135# - worst division by far in terms of solid contenders.
EDIT: i almost want to remove 205# from my list because I have no idea if the division got weak or the champ is that dominant, but outside of Mr. 1derful or Gustoffsan there aren't any new fighters on the horizon.
155# - by a country mile.
170#
HW - could get pretty deep if everyone from Strikeforce jumps over into the UFC.
185#
205# - Hard to accurately place now that JBJ has ran through the entire division, and all the previous contenders are kind of old.
145#
135# - worst division by far in terms of solid contenders.
EDIT: i almost want to remove 205# from my list because I have no idea if the division got weak or the champ is that dominant, but outside of Mr. 1derful or Gustoffsan there aren't any new fighters on the horizon.