After being named FIFA's Coach of the Year, Klopp also praised Tottenham's Mauricio Pochettino.
"I respect them a lot," said Klopp. "What Pochettino did last year was so exceptional. Many times when you don't win a title people don't remember you but he was extremely impressive. He has built his team step by step and keeps the team together.
"Pep Guardiola ... what can I say? He has won so many titles, the way his team plays. He is so exceptional; hands down, the best manager I've ever coached against. It was an honor to be nominated with them."