Last season was full of surprises in the Champions League except Manchester City's championship.

To be honest Manchester City's making it was also surprising from a different point of view. They won the title for the first time in club history in the end which was the surprise. Otherwise they have been favoured for it highly for many years already.
The main surprises were to see Inter and Milan both in the semi finals. They were lucky to have a draw against each other there though. Because if both of them faced teams like Manchester City and Real Madrid in that stage the chance of their making it to the finale would have been lower.
But this tournament gets even more beautiful when we see different teams in the final stages as well. It becomes more intriguing to follow.