BOS used to fly 763-200 3-Class planes back in the AA profit days, however 763-300's were always 2-Class, which you had. The 757's are worse.

For the catering, airlines have no excuse to do what you claimed. Unfortunately it never changes. Road Warriors know what planes to book, now-a-days.

I hope AA expands their 767-200 and 777 planes and just dump the 757's and 767-300's all together.

Good luck!