I'm giving the Euros a very slight advantage in talent, but the home course crowd will be a more important factor.
After several minutes of intense evaluation, this is how I see it (order presumably based on official rankings):
Scottie Scheffler Rory McIlroy USA
J.J. Spaun Robert MacIntyre USA
Xander Schauffele Tommy Fleetwood Euro
Russell Henley Justin Rose Tie
Harris English Rasmus Hojgaard Tie
Bryson DeChambeau Tyrrell Hatton USA
Justin Thomas Shane Lowry Euro
Collin Morikawa Jon Rahm Euro
Ben Griffin Sepp Straka Tie
Cameron Young Viktor Hovland Tie
Patrick Cantlay Ludvig Aberg Euro
Sam Burns Matt Fitzpatrick Tie
I can't get this to format properly.