First Impresions PS3

[MrMafoo]

It sounds like you don't have a 360 (just a guess because you just got AC).

So, I would get (in this order)

Ratchet and Clank
Uncharted
CoD4

I think the best game (personally) is CoD4, but being you have Resistance, play that and when you are tired if it, get CoD4.