I can't really answer I guess. It varys so much. I play my PS3 much more than my other systems but my 360, DS, PSP, and especially the Wii don't see much action.

However my DS/PSP have been getting some love lately. 360 will not be until Gears 3 sadly. Not sure if i'll ever play my Wii because Xenoblade doesn't seem to want to be localized.

Xbox 360-when i first got it until 2 years ago around 30 to 40. Now around 0 to 5

PS3- including movies-10 to 30

Wii-10 to 20 when New Super Mario Bros came out. Now 0

PSP-3 to 6 when MEtal Gear solid Peace Walker came out. Now 0

PS3 - Only a couple hours per week right now, Madden 11 is the only thing I play on it. GT5 will change that.

360 - As much as I can! Could be as high as 20 hours or as low as 10 if I'm too busy. With New Vegas tomorrow and Black Ops very soon my 360 will be running hot and RRoD is a serious fear of mine. (I'm not joking or trolling, I'm going to play 360 so much it'll probably RRoD)

PC - For surfing the net about 1,000,000 per week; for gaming 0 hours per week