Real Madrid: Cristiano Ronaldo
Like one or two others, the choice of Cristiano Ronaldo can seem a little easy...but it's perfectly right, too.
Real Madrid's team balance isn't great just yet following a summer of transfer activity in the midfield area, meaning they can be great at times going forward but also woefully exposed and indisciplined at the back.
Ronaldo's unerring, relentless match-winning ability can so often be key in turning late results in Real's favour, with his athleticism and endurance also vital in hurting teams on the counter even when they appear to be getting the upper hand on Real.