I don't know exactly about what stats you guys are talking about but Inter managed to win in Munich and draw in Barcelona, not too many teams would be able to do something like that. PSG have beaten Liverpool at the penalty kicks, than Aston Villa, which are a good team but no more than that, and yes, they did well against Arsenal. I am more impressed with a team that beats Bayern Munich and Barcelona rather than Liverpool and Arsenal.
Against Barca, that I'm not sure about, even Inter were no match. The only difference that made them win was that Barca wasted so many chances in both the first leg and even more in the second leg, while Inter maximized all the little chances they had, plus Barca's defense was also weak (the stats don't lie, and I watched both games, those corners were crazy btw ). But yeah, everyone has a different perspective of viewing things. To me, the final could have been Barca vs. PSG... it is what it izzz, anyway Anyone could win it because it's a final... but PSG has a better chance, imo, unless luck is totally against them.