I own all the currently relevant gaming consoles except XBO, so
Wii U (active local multiplayer machine of choice)
3DS XL (fire emblem, zelda, and few others)
PS3, PS4, and PS-Vita (most favored, with most games across all the devices due to PS+ free/discounted games)
X360 (Halo 4 and Witcher 2 were last games I played on there)
Ouya (TowerFall)
iPhone (iOS, played rarely but for games like Device 6, Rayman, Infinity Blade)
Kindle Fire (Android tablet, Angry Birds, Cut the Rope, etc)
PC (laptop that can run ESO beta on Medium at decent framerates, and older games at higher settings)
Mac (laptop, that I can't think I have ever used for gaming, but technically it has some stuff)