Originally Posted by
will2288
I assume you mean the AA A319?
I haven't flown it, but it doesn't seem to get good reviews from flyers on the AA forum. It does have better IFE.
I would probably make the decision based on price and flight/connection times over plane type in this case.
(if you happen to be in J, and the 757 has 16 seats, that is far better than the 738/319/757)
Number of J seats and quality of IFE depends on the airline and not the aircraft. We really need to know from OP which airlines he/she is comparing.
A318 does exist. It's a smaller version of the A319 and I believe it's flown by several Latin American airlines. I think this rules out AA which does not fly A318.