Has he ever had a late payment on any accounts?
Does he keep high balances on his cards (high credit utilization ratio)?
I have read that AMEX prefers customers who don't maintain high balances on their cards. Essentially they want someone they can trust to PIF every month. His credit cards and AAoA's look very similar to how mine was (I was approved for the AMEX BCE). If the answer to the two questions above is "no", I think he should be a shoe in for the BCE.
AMEX BCE $7,100 eBay MasterCard $5,000 SallieMae MasterCard $1,100 Emigrant Direct $4,500 Wells Fargo Platinum $1,500
Belk Rewards $1,700 Amazon Rewards $3,000 WalMart Discover $1,200 Barclay's Rewards $1,000 Discover More $2,800
What's in your wallet? : D