Yall know damn well its Mike Will
And its not even close.
For those who need convincing, in case you missed it:
No Lie - 2chainz lead album single
co-producer on
Mercy - biggest rap/hiphop song this year
Bandz A Make Her Dance -

probably the biggest club/party hit this year and the popularity for this song just keeps going up
Turn on the Lights - Really put Future on the map as far as mainstream success (got Pluto a re-release date)...Kelly Rowland feature on Nevah End-another Mike Will track, and Future on Rihanna album and Mike Will got a beat on there as well
Produced for Brandy, All the heat he got on Gucci's Tapes this year [PPPPPPPlain Jane

]
And it seems as if he going start 2013 on fire as well.
Produced Wayne's new single (bytches love me)
Radio is playing the fukk outta that Rihanna-Pour It Up, wait til it catches steam and they forced to do a remix
Trinidad James Next single (turn up)