Well we all know football as a game of luck so you never can tell who might been the loser manybe just making some prediction based on past events, well to me as it stand Aston villa's chances against PSG in the champions league quarter finals just as you have said given the gap between this two teams PSG performance in French league 1 and 33 goals and 10 victories in 9 matches, Last I checked Aston villa's on the other hand has scored 17 goals, with 6 victories just in 10 games with all their chances of winning the league is unpredictable and questionable especially considering that a strong term Liverpool lost to in the previous season.
Well as for your placed bet your bet for PSG might just pay off concept of their past winnings and their strong form Aston villa's uncertain for them, one thing I no for sure will happen their most be a loser and winner.
The past event always told us about the truth, and importantly, it happened last weeks. How can we say it has no use in predicting the future event? It most likely PSG to perform the same line up as what they did against Liverpool.
That makes me believe they will win. It's not because i randomly used past performance as my benchmark. However, I also use my logic in comparison to the quality of squad and in game performance.