I never thought he was number 1, but I do think Moose is one of those guys who is either severely underrated or slightly overrated. He rarely gets an honest assessment because his haters are either discrediting resume (hur dur Jardine draw) or his fans are defending their guy from the cesspool that is online ambiguity.
The truth is Moose has the skills to be champion on an given night, against anyone in the top 5; however, based on skill set and attributes, I still think Whittaker is the man at 185. Whittaker is a great wrestler, clean and explosive striker, athletic, and composed. Whittaker explosion is what really stands out out when matched up against Moose. I highly doubt Moose gives Rob fits on the feet, and if he takes him down, he's not holding him down.
That said MW is kind of like LHW and BW where the top 3 are all championship caliber. Whittaker, Romero, and Mousasi are the kings of that division.