For some reasons I'm ment to believe that PSG will eliminate Liverpool, Liverpool had a very good outing in the group stages, personally I don't think they will continue in that form, on the other hand, PSG were not fantastic but came alive in their last two games of the group stage and since then they have been superb. PSG is in great form right now going into the Champions League but we shouldn't forget that in terms of experience, Liverpool has more of it compared to PSG in this competition.
If there is a club Liverpool does not frequently meet that should be PSG, though they are not on the same league but Liverpool has frequently meet outside leagues clubs but however as people that has a cleanical performance and outstanding enough to win real Madrid but PSG cannot do that to real Madrid so that gives Liverpool a hierarchy against them, actually this is not conclusion but a statistics of a clinical comparison, so this round Liverpool will also qualify as always by wining their opponent PSG. Feyenoord will meet their match because Inter Milan is not AC Milan they sent home, so is a retaliation of a brother and with a vision of seeing what comes in upcoming fixture.
It's still quite difficult to predict who between Liverpool and PSG will qualify for the next round because the two rarely meet and both are the best teams in their respective competitions at the moment. At least we have to see how the first leg will end and from there maybe we can predict who among them will have a greater chance of winning.