Originally Posted by
e_chappy
Would like to get a confirmation that through-checking of luggage won't be possible, which means that the UA flight would be my best option.
That is correct, AA will not check bags through across separate tickets, no exceptions.
1:50 will be fine if on time and no delays or issues getting your bags. But the 2:20p arrival on UA does leave much more cushion and probably what I'd do as well.