I will be flying ams-nrt next week but have to choose between BA and CX in first. BA is almost 2000$ more expensive. I am gold on BA. What to choose? Is CX's 1st seat any good? Where will I get the best service in the air AND on the ground? I did CX business ams-hkg and was pretty happy with it.

Is the hkg-nrt route a 2 class flight or do they also have first?

Lot's of question, thanks in advance for the answers!