In all seriousness though, I think it should be Messi.
Having said that, if Salah finishes top scorer in the league (looking relatively likely), Liverpool win the CL (they're definitely favourites) and Egypt do well in and perhaps even win the ANC this summer (its in Egypt, they generally have a pretty good team, despite the WC debacle), I think there's a good chance he'd win it. Even more so if Liverpool do the unthinkable and win the league tomorrow.
Which would be funny because I think its fair to say he was better last season but we all know that isn't how the competition really works...