Speaking before the delegation left England, chairman Alan Rothenberg revealed the team had been impressed by what they saw.
The American – who masterminded the USA 94 World Cup – said: “The English written submission was outstanding and we were very pleased with it.
“But we wanted to find out the passion ordinary people had for the bid and that we felt was extraordinary and quite incredible.
“We met government officials, the Prince of Wales and city mayors and everyone is behind the bid.
“The stadiums were outstanding and the new Wembley will be a magnificent facility. We were as much impressed with the older stadiums that had been renovated without destroying their great traditions.
“We focused greatly on security. We spent time with the Home Secretary and it was clear England had developed the most sophisticated system of security we’ve seen.
“We are not decision makers but I can assume we have some influence. England has all the elements of a successful bid.”
England’s rivals in the race to get the nod for the 2006 World Cup are Germany, who hosted the FIFA delegates last week, Brazil, Morocco and South Africa.