Ignoring handhelds, I'm going to have to go with the ps3.
December:
Pro Yakiu Baseball Spirits 5
Gundam Mosou 2
White Knight Chronicles
January:
Dynasty Warriors 5 Empires (DW6 in the West)
February:
Demon's Souls
Street Fighter IV
Yakuza 3
March:
Resident Evil 5
Final Fantasy VII Advent Children Blu-Ray + Final Fantasy XIII demo (two hour long demo)