All the Uncharted Games, GT5, Heavy Rain, (Basically anything PS exclusive i've wanted to play since i just bought my first PS3 about a week ago). All my backlog comes to a screeching halt when The Last Of Us comes out though. That game is the reason i finally broke down and bought a PS3.
XBOX GT & PSN: thetimeofthe9 Currently Playing: Heavy Rain, Assassin's Creed III, Tera
Tales of Graces f went unplayed for a few months before I finally started it up. Ni no Kuni currently waits in the PS3 backlog for when I finish ToGf.
As for Wii/Wii U, I just completed Wario Land Shake It! 100%, am putting most of my time in on Rune Factory: Tides of Destiny. New Super Mario Bros. U is only seeing attention in short bursts, and among others, The Last Story, Muramasa: The Demon Blade, Fire Emblem: Radiant Dawn, Paper Mario: Thousand Year Door, Super Paper Mario, Pikmin 2, and Sin and Punishment: Star Successor are waiting in the backlog.
New games almost always take a back seat to my backlog.
Surrender and I will destroy you peacefully. R.E.G.I.S. mk5 - Megas XLR