I hope PSG will become the champion, Inter have many chances to qualify for final, but PSG is rare. They're fortunate Real Madrid and Manchester City were under perform, that's bring them to enter final.
i think inter will win mainly because of PSG 's weak defense and inter being good overall.
In knockout, PSG only conceded 6 goals while Inter conceded 10 goals.
PSG's defense aren't weak, but their defenders are shorter than Inter's defenders, which would be a problem if PSG gets aerial attack.