Both have their advantages when playing another. The electro can sit, lane, and hammer your bunker for 8 pods worth of paint. All the while you're sitting there waiting for him to drop his gun for that one snap shot. He's also got the advantage of in a split second putting ten rounds on you if you decide to move. He can also rattle you bunker while he runs up to bunker you.
If you're a smart player, you won't make a home in a bunker. If he doesn't know here you are he can't shoot you. I think that's the advantage to SC, you move far more. I also think the mentality helps as in you know you need to make your shots count, while most times with an electro it's spray nd pray.