imo, it is always nice to have more core especially u really ned it if u r really a heavy user e.g alot of multiasking..

but most importantly is the optimization, i really wish that android jelly bean phone will be in the mass market soon cos the user experience (base on my experience wit galaxy nexus jb) is superb, very buttery smooth, b4 jb, lag being android disadvantage for years since it first came out.