I actually haven't run into any rude AC FAs even on Domestic Y (although I'm sure this isn't the case for most people). In my experience the older FAs who you'd expect to be grumpy are actually the nicest. I have however run some bad apples on CX on board intra-asia J. If I may ask, with AC, what would be your routing? If possible I would recommend routing through NRT as both catering and service are usually top notch ^.