Just in general, the CL is very open this year. The teams through so far are:
Benfica, Milan, Chelsea, Bayern
Then after that, there is (imo):
Real, Inter, City, Napoli
For me, with the exception of Napoli and Benfica, all of those teams are having below par seasons. However, even Benfica and Napoli (the two form teams) have little, recent, experience of the latter stages of the CL. Depending on how the draw pans out this could be a season where we see a sort of 2003 situation or at least a final where a team reaches it whilst being well below par domestically.