Quoted from jar155:If you're going to own Spider-Man, just make sure that you learn how to go after and complete the white spider modes. It's a whole different experience when you shoot for them. It's not the way to maximize points, but it's more fun.
Well considering starting a mode gives you a 2x playfield multiplier, then if completed you get a 3x playfield multiplier, I'd say the modes are very important in maximizing points depending on where you put your multipliers.
As to the OP's original question, IMPO they both work great in a small collection.