IMO, best nVidia board makers are:
EVGA (FTW, SC Edition)>ASUS (DCU2)/Gigabyte(Windforce)>MSI (TwinFrozr)...I'd let price be the distinguishing factor as they're all great cards.
@refaelagronov...
how well does your 4790K work with your x99 Deluxe mobo? Just curious