I would suggest row 66 or 67 (window+aisle seats). I just did a flight on CX (for the first time) from SFO to HKG and back, and I noticed these seats when I walked back to the lavatory, and boy did I wish I picked those instead of the standard seats. If you're travelling with one other person, these are great because theres only two seats, rather than 3 per row. I hated having to wake up the stranger sitting next to me everytime I needed to get out to use the lav.