As a "Bloonie" I find it amazing, that people who have never flown jetBlue finds AA product superior. How can one possibly compare, with no experience?
While it is quite true, that jetBlue does not serve the midwest, that will only be a matter of time. Last I checked jetBlue had 50 airplanes, AA probably 600 if not a few more. So, give it some time.
My somewhat biased take, would be as follows:
Snacks: jetBlue offers a larger variety on all flights.
Leg room: AA has MRTC, jetBlue has removed a row to increase leg room. Row 1 and 11-26 offers as much room as AA, if not slightly more. One should note, that on the low fare routes AA is decreasing pitch. So jetBlue offers good legroom and low fares.
IFE: We can argue, whether the "boobtube" is better than a book, but it certainly is better than "canned video" which, if you have flown a few times, one often gets to watch the same reruns, with no choice. jetBlue does offer 24 channels, there might be something on, that one has not seen. What maintenance on the system has to do with the product is beyond me, but yes, jetBlue does often give compensation, should the system be down. While I cannot say for certain, I doubt AA gives compensation, if their video system is down. Not to mention, that a few AA airplanes has no IFE system what so ever.
Once the EMB-190 starts flying, it should be a much better experience than the ERJ. It offers more room and it will have the IFE. I think it will be favorably received.
Bottom line: jetBlue offers a great product, with quite a few plusses for a LCC. A product that I believe is very competetive.