As Kimmi notes - differences in lineup construction don't matter a whole lot ... but that is different than saying they don't matter at all. Even a dozen runs over the season can help - and every edge counts in short series. The question really is how can you balance the two goals of getting your best hitters more plate appearances, while ALSO getting your best hitters the most number of RBI opportunities. I think in that vein something like a Betts-Benintendi-Martinez makes sense for your top 3 (get them as many PAs as possible), while putting Nunez and Bradley 8-9, to give them some additional RBI chances.
Yeah you are putting your weakest hitter at #7, but I do think the catcher position could end up being perfectly okay there. Vasquez showed last year he can hit well enough for a catcher, and Swihart certainly looks like he could hit well enough for anybody.