If low prower draw is your main purpose of the build, go with intel, i just tried to do a Haswell build to replace my Sandy Bridge build for my download station, and i really wanted to fit the Nofan95 on mini itx mobo, i found a mobo that didnt had any issues with the mounting the big backplate, and all fitted really well, but the power consumption was not as good as my old build, 13W for the G3220 + MSI H81 and 10W for the i3 2100T + Intel DH61DL, all other components were left the same, OS were installed from scratch, only the drivers from each webpage, both with the latest bios etc. To me its the motherboard, i seen some haswell G3220 builds idling between 8-9W, i think was a AsRock mini itx mobo, dont remember the name.
That said, intel to what i have tested builds the most efficient mobos out there, the difference might not be huge, but really depends into what you are aiming for, for me it was the lowest idle power consumption i could while still manage to unzip, sustain gigabit lan transfer, etc.
I like the Intel Boxed Desktop Board DH87RL
, thats what i would pic if power consumtion was my main concern, now if doesnt have the features you want, then go with whatever will have it.