This is thought-provoking, actually.
n the regular season, Vilade was .818 OPS vs, lefties and Aranda .837 vs. righties. Their HRs/AB are very similar, too. Where there may be a difference is defensively, but I don't know there, either - Vilade is usually an outfielder, and Aranda is not great, as we've seen. Ergo, it doesn't seem like worrying about who's at first should factor into pitching decisions, at least not early in the game.
The other thought here is about who's in what role out in the bullpen tonight. We are pretty sure it's bullpen tomorrow, so holding back some long guys would be advisable,