#2 Sebastian Vettel
Sebastian Vettel began the 2010s in the same way which his hero Michael Schumacher started the 2000s, in absolutely unstoppable form.
Vettel won four driver's championships in a row between 2010 and 2013, breaking most of the "firsts" records in Formula 1, a lot of which still stand today. This period included the incredible nine-race winning streak from the 2013 summer break onwards, smashing Alberto Ascari's record out of the park. It seemed for all the world like Vettel would soon be breaking every record in the book, but things haven't gone to plan since.
The change to V6-turbocharged engines and the alteration in aerodynamic regulations cost Red Bull in 2014 and Vettel moved to Ferrari for 2015. Despite a good start in 2015, 2016 was a tougher year for Vettel and the team. He has challenged for the driver's title in both of the past two seasons, as Ferrari finally got their act together and produced a leading car.
However, a combination of driving and tactical errors (the latter on the part of the team) cost him dearly in the second half of both seasons. 2019 has started poorly, with some even questioning whether the German will retire at the end of the year, but he remains one of the most successful drivers ever and of this decade.