It would be very interesting to see this confrontation. A confrontation between truly strong teams. But I think that this is possible, since people come from different groups and we need to get to this point and not get into trouble. Nowadays games have become so unpredictable that it is difficult to predict anything.
I see that predictions are still difficult only for group F, while for the other groups it is getting easier to make predictions about who will qualify and who will not. Everyone can see how far apart the strong teams in the group that I mean are, because a mistake by one team can make them fail to qualify and be a big benefit for the other teams to be able to qualify more easily. Meanwhile, for the other groups, it is not too complicated to make predictions about which team will advance to the next round.
Group F consists teams which have inconsistent form. for example, Dortmund gained only 1 point in their first two games, now they are top of the group, Newcastle had a convincing start, now they are at the bottom of the group. I can see this group will go to the last games to decide who will progress to the next round. Betting for this group is fun and also nervous, because each game has good good odd for the bet.
Other groups are so expected. I feel that putting bets on these group is not so fun, because it has small odd, and can make us having depression if we lose the bets.