La Furia Roja won the European Championship in 2008 and 2012, and the 2010 World Cup in South Africa.
"I admire them because I have followed the national team since four or five years ago," said Pele.
"All of those years, they have played very good. They have a nice team. It's not only individual players."
"No doubt, they'll be one of the best teams in Brazil. No doubt. If they don't have injuries, today, they are the most organised team in the world."
Spain are currently ranked number one in the FIFA World Rankings.