The Swede, who has scored 10 goals in the competition this season, said: "I think Chelsea are the super favourites. We are beginners in everything we do while Chelsea have had a project for 10 years.
"Experience is an advantage for the one who has it. I think Chelsea has more experience in the Champions League. We're in the position Chelsea were eight or nine years ago.
"The big difference with last year is that it is my second year as well as my team-mates'. We know each other better and I think we are better today than one year ago collectively."
The 32-year-old has played for a host Europe's top clubs, among them Ajax, AC Milan and Barcelona, but has never won a Champions League winners medal.
Ibrahimovic is keen to rectify that with PSG but is not yet ready to consider it may be this season.
"This is my last contract in Europe and to win it I will have to win it with Paris," said Ibrahimovic, who is under contract at the Parc des Princes until 2016.
"The day I leave Paris is the day I will go down a level or quit football. If we will be the kings of Europe, I don't know. I don't want to think so far ahead. Let's think about the two games against Chelsea."
Ibrahimovic, who has scored 41 goals in his last 36 appearances for club and country, has ruled out the possibility of ever joining a Premier League club.
"It's impossible to get me to England," he said. "The day I stop with football it will not be that I look back and I say to myself 'Maybe I should've played in England.'
"I haven't been part of it. I made stories in other countries. It's nothing that I regret."