DFS is priced at near $60 and pays $.80 dividend compared to AXP $.92. Both are expected to earn about $5.00. Selling AXP for about $90 can net you enough to buy 1.5 times as many shares of DFS. You would then receive $1.20 in dividends. American Express appears to be overpriced and has hit the wall at near $90.
Discover might be a better choice for those not owning either stock. For those with tax issues holding AXP might be consider a good choice.