OK folks. After 22 years, I'm considering making a change from UA to either DL or AA. BOS has evolved and UA is no longer a dominant carrier. While I love the *A, I hate that I have to connect pretty much everywhere else on UA when flying Domestic.

Delta has now made BOS a hub, and is consistently ranked #1 in the USA for carriers. Lots of direct flights, and a great product, but terrible FF program. I was totally leaning towards DL because of this, but have since changed and am now looking at AA.

I hadn't really considered AA until now because I haven't been happy with what Parker has done with the airline. Project Oasis. No seatback IFE. etc. But...my thinking has evolved over the last few weeks. AA is a decent carrier at BOS. But their relationship with JetBlue is pretty compelling. JetBlue is #1 carrier in BOS. Combined with AA it makes it a pretty compelling choice. A tremendous amount of direct flights everyone. Only downside is not as good internationally as UA.

My question is around how to earn the new Loyalty Points. I get it on AA. As a general member I get 5x the fare plus credit card spend. But I am less clear on how this works for partners. Can you help clarify? Specifically:
-Flights on Jetblue. It seems I get same Loyalty points accrual as on AA, regardless of whether or not hte flight is marketed with a Jetblue flight # and ticket or AA flight # and ticket. Correct?
-Flights on BA: It seems like if it is booked as AA flight # I get AA accrual based on fare. But if booked as BA flight # I get the distance with fare class multiplier. Correct?
-Flights on Alaska: Same as BA. Correct?

On UA, the ticket stock matters more than what flight # a flight is booked on. But as I'm reading about AA, it seems this is irrelevant and how the flight is booked is what matters. Correct?

Thanks for the advice!