I agree with the breakfast at Plane Food. It is really quite good and much better than the offering in Galleries Club.

My strategy would be to head to the north lounge (turn left after flight connections security) and make your base camp on the terrace. The south lounge does not have a terrace and is further from the shops and restaurants in the main part of the terminal.

Other than that, just enjoy the chance to sit back, relax and contemplate the long but comfortable CW flight to SFO ahead.