Yeah, anything is possible in the game of football, but in this case I will always go with PSG this campaign. I initially didn't believe in them when the competition started in September. My convictions about them started with the way and manner they played against Manchester City in game day 7 of the group stages game, although people will argue that City isn't in form but the way PSG played even after they were 2 goals down was top notch. Their game against Liverpool in the Round of 16, the way they managed, controlled and advanced even when they lost at their home ground was something else. In my opinion PSG stands a better chance of beating Aston Villa.
Yes they played very well against Manchester City, but I think there was still some risk involved because Manchester City sounds big, but they aren't as big these days for reasons I can't explain. If someone tells you that PSG dominated Manchester City three years ago versus now, it is a whole different story as you can see now against Brighton or so many other teams where Manchester City wasn't able to win against or even lost.
But they came back from that 0-2 in fabulous fashion and they did a lot of things that left a great impression. More importantly, PSG lost their home game against Liverpool, which I think is game over 90% of the time and they were able to win at Anfield Road. That was the moment now when everyone understood that PSG is one of the favorites because if they can beat Liverpool at home, they can beat any team anywhere.
Although, PSG once beat the incredible Manchester City side of 2021 in the group stage 2 - 0, yeah at that time Mbappe, Messi and Neymar were all playing for PSG then, I think Messi even scored in that game, I really can't totally remember though. Although, City beat them 2 - 1 in the return leg. But like you said, PSG didn't dominate the match, it was Manchester that dominated even though they lost 2 - 0 in that very game. In my opinion, PSG has the tendency of going far in this season, if I'm not mistaken they might actually eliminate Real Madrid that's if both of them gets to meet in the SF.