I've done the SEA-PHL followed by a drive to ACY. Once out of the PHL traffic, plan an hour for the drive. I honestly don't know if going into EWR would be faster. It all depends on traffic. One thing to consider, if you choose AS then it will involve a redeye on either OGG-SEA or SEA-PHL. The one issue with this routing is that the only way it works without an overnight in SEA is to take the day flight OGG-SEA then the redeye SEA-PHL. I wouldn't want to be doing the PHL-ACY drive after a redeye. If you overnight in SEA, the PHL-ACY drive will be during rush hour. Not ideal in either situation, but at least you don't lose all the miles using AA.