They give both the Red Cross and Samaritan's Purse a good rating...however, they don't have the International Red Cross on their A-Z listing, so they might not distinguish between the American and International versions of the Red Cross. They give Americares an A rating.
Great link. Having worked in the sector for a few years, I have experiences both good and bad. While most organizations are filled with people who want to do good, that's not enough. Sometimes the organizational structures are ineffective, top-heavy and obsessed with fund-raising and positive PR (all of which are necessary and positive, but shouldn't overshadow the purpose of the organization). Personally, I donated to Doctors Without Borders.
Thank you for the helpful link. I was dreading sitting down researching all the big charity organizations. All I knew was NO Red Cross!