A word of difference between BSC and BB&T. BSC was highly leveraged to derivatives. Even thoug BB&T has more construction loans than you are comfortable with they are mostly with customers with which they have long term relationships. Secondly, a large share of those loans are in Va an NC where real estate has continued to hold up well.
Even though construction has slowed in these markets these local builders have adjsuted much more quickly than larger corporate builders have been able to do.
And even though Alt-A mortgages are not the least risky many are to independent business owners who continue to do well and pay their bills. It seems that BB&T has good controls on HELOCs and other riskier loans (HELOCs are on top of mortgages and often are 100% losers in foreclosure).
Comparatively speaking BB&T is in much better shape than a lot of banks. View these comparsions: