Which Spidey game should i rent

Prototype.

Defintely Web of Shadows.

none.  i've played most of them and they are all average to mediocer at best.  If you have to have one, look at either ultimate or spiderman 2

" @BrainSpecialist: didnt like prototype all that much "

Web of Shadows if only for the combat. Though there really isn't much else to a spidey game. Unless, you know, you like collecting balloons for 2 year-olds with butter fingers.

" Defintely Web of Shadows. "

Web of Shadows. Super fun game.

2 or Ultimate

web of shadows, it has it's problems but is still pretty fun. especially once you start unlocking the tendril attacks.