I need to switch from JFK-PEK on AirChina to ORD-NRT on UA.
Seat map is showing old configuration, and I am not expecting a retrofitted plane from what I've read.

We are a family of 4 with 2 teenagers. Most of the seats are still available except 6B,J, and K.
We don't really have to sit altogether...2 and 2 is absolutely fine.
Which seats would you recommend? UA agent said 1 and 2 are available for biz redemption as well, but those are F, aren't they? Was she right?