Hello. I have been a lurker for a while and I do find the posts on this website very informative. I have a question I wonder if anyone can help with. Quick low down..family member passed away in England and I am flying over there for the funeral. When booking the flights, I used my Alaska mileage plan number since British Airways and AA are partners. I have looked and I see I will get miles credited to my Alaska account. Is there a way to calculate roughly how many miles I would receive since I am flying on codeshares. I have looked at the Alaska website for partners and it was hard to decipher. As of right now I am MVP status. Flight plan and classes are as follows:

OKC-ORD: business class, American, class J
ORD-LHR: first class, British Airways, class A
LHR-DFW: business class, American, class I
DFW-OKC: business class, American, class I
OKC-SEA: Alaska (not concerned about this one because I already know the amount of miles)

Also curious if anyone would happen to know why when selecting the flight on BA the price for first was cheaper than business class at around a $800 difference less for first.
I am actually quite pleased that it worked out this way. I haven't flown BA since I was a child and I am crossing the pond in a 747 no less!
Anyways, thanks for the help