#2 Lewis Hamilton vs Sebastian Vettel
It will come as no surprise that many expect another driver's championship to be between Hamilton and Vettel for the third season in a row.
Hamilton currently leads Vettel 2-0 in championship battles and it all started since Nico Rosberg announced a surprise retirement from the sport in December 2016.
Since then Hamilton has battled against another German in the form of the four-time champion, Vettel.
There's nothing new for Hamilton back at the Mercedes garage with teammate Valtteri Bottas working alongside the Briton for a third straight season.
Meanwhile, Vettel has the arrival of Charles Leclerc to worry about as the young man from Monaco has shown great potential in his debut season in F1 at Sauber.
Hamilton is the clear favourite to win a sixth world championship in 2019 and he really is showing that he is the man to beat.
For Vettel, the time is now to try and bring home Ferrari's first drivers' title in 12 years.