A hand a friend and I discussed

[Nottom]

This is a pretty easy river bet IMO. If the button has you beat and is good he will bet when you check most of the time anyway so you don't save much with a check. Raising at this point for him is terrible for pretty much anyhand, so I wouldn't worry about that either.

The important thing to recognize is that even if your value against the button is quite small or slightly negative (which I don't think is true) the presence of the BB adds a ton of value to your bet which makes checking that much worse.