Try 'em out, you're the one who has to shoot it when you buy it. Whichever one seems best suited to you and your style, buy that one. And don't stop at just those guns, try a bunch.
Frankly from the lasers that i shoot out of my shocker i would go for a shocker .
But you would need to buy one then upgrade it, which would mean you would probably have to keep it rather than sell it off quickly, but they are great gats, if u know pple