Looking at last season's game between Chelsea vs Real Madrid I think it's difficult for Real Madrid to win the game.
I'm sure Chelsea will repeat last season by getting rid of Real Madrid again. But if we talk about winning the Champions League this season I doubt that Chelsea will repeat to be Champions again.
Well, the same argumentation existed here even before the PSG game. The tenor was that PSG is the clear favorite and Real is too old to have a chance. As we know, it came differently. I think that the outcome of the game is completely open and you can not talk about a favorite here. Both teams have their strengths and weaknesses, which makes a prediction difficult.