[xPeru]

Nothing wrong with an occasional passive line to mix it up. But you have to ask what the purpose of your river bet is. On this board v this villain in the CO, I think I would be happy to get to showdown as cheaply as possible, so river is a blocking bet presumably? I prefer check/call river, you're ahead of half the Aces and most pairs, obv behind lots, so I wouldn't fold, but wouldn't be looking for value.