Yeah football is not that simple and there are many factors that can change the situation. Aston Villa can be called the underdog team because they are not one of the favorites to go this far but somehow they got to this round. If you think Aston Villa will beat PSG that's fine but from my side I prefer to see PSG win and I still remember how they kick out Liverpool through a penalty shootout. The match that I might consider easy is Barcelona and PSG because they are on different levels. By the way, what do you think about the Bayern Munich vs Inter Milan match?
Aston Villa have made it to the quarter-finals against everyone's expectations. It may have been a surprise to many that Aston Villa will make it to the round of 8. Even PSG have surprised everyone by defeating Liverpool and reaching the quarter-finals. Basically, both the teams have unexpectedly won the round of 16 and made it to the round of 8. Now it is to be seen which of them can reach the semi-finals. In this case, PSG may have a heavy chance.
The match between Bayern Munich vs Inter Milan is going to be the most exciting and competitive match of the quarter-finals. It is difficult to say what is going to happen in their match or even the most difficult task to predict the match. I guess Inter Milan can do a little better and I will put them ahead in terms of winning chances.