The BofA premium card is basically a cash back card. You can earn 2.625-3.5% back. The other Chase cards are true travel cards that have way better insurance coverage especially for car rentals. Chase is primary car rental coverage while BofA is secondary. With Chase cards you can transfer points to partners or use points on Chase portal. The CSR points are worth 1.5. So you'll be earning 4.5 for travel and restaurant charges