I think Man city have what they have been lacking in previous years. I think this is their year it's now or never for them.
Another team that could also take the Champions League is Bayern Munich, I think they are always solid and have a good team.
From there I don't see anyone stronger than the two of them, although as you said it's still early days. Although I would like to see a surprise in this edition.
I think Bayern Munich is always a good shout :)