I don't necessarily hate a Silver lynch, especially since I'm town reading everyone on his wagon, but I think it reflects well on him that he hasn't attempted to push either of the counterwagons. In fact, he's defended both of them to an extent.
Vote: SMS
That's part of it for me, since meta has generally been very reliable in determining his alignment. I'm also pretty confident that one of him, Ex, and Johnny is scum for reasons stated earlier, and I think his reasoning for the Kreaal vote was pretty poor. And even if he doesn't flip scum, I think it'd be an informative lynch.