Air Canada uses the ex-Canadi>n Airlines B-747-400 on the YVR-NRT route. The seating in Executive First Class (formerly Empress Class on Canadi>n) is extremely comfortable. AC has yet to change the seats on these ex-CP aircraft. So expect a very comfortable ride!!
The ONLY thing I am not crazy about was the odd choice of Canadi>n Airlines to refit their interiors with grey seats. The grey has specks of gold, but still, I much rather preferred the old CP navy blue seats.
Still, VERY comfy seats, more comfy than the AC aircraft.
Air Canada Executive First in-flight cuisine is actually quite delicious. You will have a choice of up to 4 entrees, and their selections of wines are superb.
Infligght entertainment is the individual passenger video screen at each seat, with a wide selection of films and specialty channels. Pretty good.
I wish you a safe and pleasant journey to NRT!!!