Jeudy is an incredible route runner which should translate better to the NFL, but I don't think there is much between them at this point. Seen the comparison made with Calvin Ridley a few times already, who I think is almost ready to surpass Julio or at least function as a 1a/1b receiving core like Evans and Godwin did last year.
I'm mostly following for my Dynasty draft, picking #10 so gutted that I won't have access to the elite talents, hopefully I'll be able to unearth a gem. Landing spots will also play a big part in how Lamb and Jeudy get on in their first year. The Cardinals desperately need a WR1 but their offensive line is a bigger priority, the Jags have too much issues on defense, so I don't know. Can see Lamb/Jeudy going at #11 and #12 for the Jets and the Raiders.