Despite praising Borussia Dortmund, the former Manchester United keeper is backing his compatriot's side while his Ajax colleague, Frank de Boer, holds similar sentiments
Wembley will host the all-German clash on Saturday, between the Bavarians and Borussia Dortmund, and the former Manchester United goalkeeper thinks that his compatriot tips the scales in favour of Jupp Heynckes's side.
"Bayern Munich, with Arjen Robben on their side, are favourites for the final in my eyes," the ex-Netherlands international, who is now the marketing director for Ajax, wrote in De Telegraaf.
"The entire team, I think, is stronger than that of Dortmund, even if you do not know what [Robert] Lewandowski will bring to the contest. That striker has made a big impression on me this season."
Despite lagging 25 points behind Bayern in the final Bundesliga standings, Van der Sar believes that BVB have come on in leaps and bounds this year and deserve praise for their run to Wembley, having beaten out Real Madrid, Malaga, Shakhtar Donetsk, Ajax and Manchester City en route.
"The whole Dortmund team have made excellent progress this season," he added. "I have said before that the club have set the perfect example in Europe."
Ajax coach Frank de Boer shared a similar sentiment to his colleague at the Amsterdam ArenA and, despite his affection for Dortmund and BVB boss Jurgen Klopp in particular, he is rooting for Robben and Co.
"I hope that Bayern Munich win the Champions League," he told NOS, "but if Arjen Robben didn't play for Bayern, I would support Dortmund.
"Klopp is a friend of mine but I'm also patriotic and I'd rather a Dutch player win the prize. I hope Arjen plays, he's in a good shape and it looks like he'll start."