I like how you put it because there is not two ways around it, PSG will trash Aston Villa with minimal stress. Aston Villa have little to no champions league experience especially in this generation unlike PSG that have always remained a big threat for several years. Besides, PSG have better players and a better team than Aston Villa, the reason they played better than Liverpool they champion of the premier league, I think where PSG will have serious match is in the semi finals where they will likely meet Real Madrid.
In other seasons we have not seen Aston Villa play in the Champions League this season they are a new team in the Champions League unlike PSG who play in the Champions League every season so they have good experience of playing in the Champions League considering all this experience and current performance PSG will definitely be ahead. I thought PSG might not be able to beat Liverpool and Liverpool might make the quarter finals, but since PSG managed to overcome Liverpool's hurdle, I think Aston Villa's hurdle for PSG won't be too big at all. PSG will be ahead in both legs and PSG will likely win both legs. Now it is being said that if PSG can defeat Aston Villa and confirm the semi-final then which team will be the opponent of this team in the semi-final. If Real Madrid is PSG's opponent in the semi-finals, it is almost impossible for PSG to overcome that hurdle.