ohh, god. to be my age with a controller or mouse in my hand. ill name the consels
ps2-probably metal gear solid 3, i spent near 8-13 hours on it one day. i was 11. didnt know what to do
xbox-halo or fable, halo on legendary takes me around 12 hours, and i play straight through fable, and that takes a good 6-9 hours.
gamecube-mario kart double dash, but only about 6 hours at most, unless you count the hours to get mewtwo on supersmash bros : D
psp-metal gear solid portable ops, for about 3 hours
ds-POKEMON FOR 26 HOURS!!!
psx-legend of dragoon, for 17 hours, and i was 9 : D
360-oblivion for the first time, played it for 12 hours
ps3-resistance on everydifficulty for around 18=28 hours
wii-havent played anything over 3 hours on it
PC-WoW of course.