There are nearly no games that interests me.
The best exclusive shooters are Resistance FoM and R2. Both are average and nothing compared to the awesome XBox360 Shooters exclusive shooters like Halo3, Gears of War, Gears of War2 or Left 4 Dead (YES, it is exclusive!).
The best exclusive RPGs are Valkyria Chronicles and maybe WKC. Again nothing compared to Fable II (my personal Game of the year 08), Mass Effect, Tales of Vesperia or Star Ocean. + Fallout3 DLC. (And I liked Infinite Undiscovery as well) With FF XIII being multiplat, the PS3 has just FFXIII Versus which might be a good exclusive RPG. But I am not sure if this one stays exclusive when Square Enix could sell like 5 million copies of FFXIII on the Xbox360.
Those are the two genres I am mostly intersted in.
And the PS3-controller sucks in my eyes. I actually sold my PS1, because I didn't like the controller and prefered the N64 controller. Well 10 years later, I still don't like it.
Plus my clan is playing on Xbox Live. I don't even have the time to finish the Xbox360 games. With Star Ocean, Halo Wars, Resident Evil 5 and Ninja Blade coming up in the next weeks, I will be busy. So I am buying a second Xbox360 (Arcade) for my bedroom. I have a 120GB HDD, which I will switch.
So there is one game I want to try and that is Uncharted. One game is not enough to sell a 400€ system to me.
And it has to be said: LBP is overrated.