Seat Selection for Couple

[Guest]

Hi All,

just looking at booking seats for our trip in September, flying with VA on the 747-400.

We were going to upgrade to premium economy, but have missed out to the early birds.

Our choices now are Exit Row, Extra Legroom, or right at the back he row of just two seats on their own at the side.

My girlfriend wants to sit on our own as then we are not disturbed by anyone having to get up and go out for a walk.

My idea is to go for an exit row, but have a few questions about that:

Do you sacrifice any seat width for the fact that the screen and table are in the armrest?

Is there USB power in the exit rows?

thanks in advance