Only 12? This is MADNESS.
Tera (PC)
The Secret World (PC)
Guild Wars 2 (PC)
Aliens: Colonial Marines (PC)
Alan Wake (PC)
Dishonored (PC)
Borderlands 2 (PC)
Resident Evil 6 (PC)
Bioshock Infinite (PC)
Soul Calibur V (PS3)
Twisted Metal (PS3)
Last of Us (PS3)
Below are my runner ups. There are many 2012 games I want but these were at the top of the list. A lot of these are runner ups because they have not yet been confirmed for a 2012 release.
Transformers: War for Cybertron 2 (PC)
Tomb Raider (PC)
Catherine (PC) - Rumored and I already own the PS3 version.
Dark Souls (PC) -
(Already own on PS3)
Magical Drop V (PC)
FFXIV Version 2.0 (PC) - Really excited about this but disappointed with FFXIV and there are too many other good MMOs to play in 2012.
Kingdoms of Amalur: Reckoning (PC) - Was hyped but going to wait for sale after playing the demo.
FFXIII-2 (PS3) - Already pre-ordered. >_>
Silent Hill: HD Collection (PS3) - Have them all on PS2 already and can already play in HD (mostly), emulated on PC.
The Last Guardian (PS3)
Ni No Kuni (PS3)
Tales of Graces F (PS3)
Last Story (Wii)
Xenoblade Chronicles (Wii) - Pre-ordered.