I'm hardly a tennis wiz, heh. I've also gotten sucked into tennis live-betting thanks to BetOnline's offering, and while I have won my more recent wagers, I'm still at a small loss overall for the French Open.
With those caveats in mind, I would absolutely pass here. Fatigue and conditioning become a factor this far into the Grand Slam, and Nadal has a big edge here. Djokovic has spent significantly more hours on the court (tough 4-setter against Carena Busta and a 5-setter today against Tsitsipas) than Nadal (easy straight-set wins against Sinner and Schwartzman), has had issues with his neck bothering him, and is generally weaker and less fit overall than Nadal. (Nadal is probably the most fit player in tennis history) Djokovic definitely looked tired at times in the 4th set against against Carena Busta and Tsitsipas, and while he had enough to beat them, he won't have that margin of error against Nadal.
Beyond that, Nadal at his very best on clay is better than Djokovic's best on clay.
With all that in mind, Nadal at -153 actually seems more appetizing than Djokovic at a mere +133 to me, although I'm likely passing and hoping for a live-bet spot.
I'm actually more interested in the women's final tomorrow. Swiatek is really, really good and might very possibly be a future 10+ Slam legendary champion.
At the same time, -168 against Kenin? That's a little too much credit too soon, heh. Kenin isn't great, but she is good, well-rounded, and possibly the mentally toughest and most resourceful player on the women's tour. She is a consistent overperformer; she won the Australian Open champion earlier this year in a big surprise, and even this tournament, she had no business spanking Collins Rose 6-0 in the 3rd or beating Pliskova in the semis, players who on paper should have a big advantage against her.
I'm curious how Swiatek responds; aside from Halep, she has had a very easy road to the finals.