At THAT time of the morning, there should be no issue regarding wait time. Later on in the afternoon, when there are several big planes leaving, it can be grand central station, but AA is the only big plane early. We were on that plane once and I think we were through everything, including checking a bag, in like 30 minutes. HOWEVER, I still would try to get there close to 2 hours before though, because I am anal.

If it were me, I'd just go with MB and eat at Karakter that night. Depending on the night, they have live entertainment some nights at Karakter.