Misplayed on every street?

[Six_of_One]

I was with you until the river, but I would have called.

When BB checks the river I think it's very likely you have him beat (maybe 67 or something), so I don't think you should let overcalling bother you. MP2 didn't raise the turn, which could mean an overpair that's scared of a 5 or a straight, but could also mean AK or something that's hoping for a nice river.

It depends on what types of players they are of course, but against unknowns (read: probably not very good) I would make this call, especially given the fact that MP2 bet "quickly" on the river.