I can't believe Easton discontinued the AC Super Slim but if you can find some those are a really good arrow and imo best of both worlds..
But with that being said I would go with the FMJ myself for two main reasons.. One they weigh a bitmore (if it's going to be your new hunting arrow) and two they use hidden inserts which I really like..

But you really can't go wrong either way.. So don't stress on it too much..