I've added FIFA world rankings in ( ), and added up the total world ranking scores per group. Argentina should barely break a sweat, while the US will have to work very hard to advance.
And, I'll miss Sweden.
Group A: 1. Brazil(10), 2. Croatia(16), 3. Mexico(20), 4. Cameroon(51) TOTAL:97
Group B: 1. Spain(1), 2. Netherlands(9), 3. Chile(15), 4. Australia(59) TOTAL:84
Group C: 1. Colombia(3), 2. Greece(12), 3. Ivory Coast(17), 4. Japan(48) TOTAL:80
Group D: 1. Uruguay(6), 2. Costa Rica(31), 3. England(13), 4. Italy(7) TOTAL:57
Group E: 1. Switzerland(8), 2. Ecuador(23), 3. France(19), 4. Honduras(41) TOTAL:91
Group F: 1. Argentina(3), 2. Bosnia(21), 3. Iran(45), 4. Nigeria(36) TOTAL:105
Group G: 1. Germany(2), 2. Portugal(5), 3. Ghana(24), 4. United States(14) TOTAL:45
Group H: 1. Belgium(11), 2. Algeria(26), 3. Russia(22), 4. South Korea(54) TOTAL:113