Monaco have enjoyed a fine season, leading Ligue 1 and reaching the Champions League quarter-finals, while champions PSG are three points off the pace and memorably crashed out of Europe to Barcelona.
"Monaco have had a fantastic season, with some really good young players," he told Le Parisien. "But we are still the best team in France.
"Now we have to demonstrate it on the field, starting on Saturday in this final."
While PSG have now had time to reflect on their defeat to Barca - losing 6-5 on aggregate after winning the first leg 4-0 in Paris - Draxler is keen to move on, insisting a bad performance was to blame, not the referee.
"[Germany team-mates] asked me what might have happened," he added. "I answered the same to everyone: we had a very bad match.
"Barcelona are the best team in the world. Some refereeing decisions did not favour us, but, when we lose in this way, it can not be only the fault of the referee."