Porte started the season in storming form, winning the Australian national time trial title and finishing runner-up at Tour Down Under before claiming overall wins at Paris-Nice, Volta Ciclista a Catalunya and Giro del Trentino, but it fell apart at the Giro d'Italia for the Australian and while the 30-year-old showed glimpses of his best at the Tour de France, the early-season seems like a distant memory.
Sagan started his Tinkoff-Saxo tenure with expectations matching his four million euro annual salary so when it took till mid-March for Sagan to open his 2015 account, alarm bells were ringing. A modest classics campaign by his high standards had team boss Oleg Tinkov calling out Sagan over twitter to which the 25-year-old responded to in style with overall victory at the Tour of California. Five second place finishes at the Tour suggested Sagan was the strongest rider in the Tour while a fourth straight green jersey was a sign of his consistency but it was a matter of what could have been for the Slovakian.
Quintana's season started with third place in the defence of his Tour de San Luis crown before a crash at the Colombian nationals set back the Colombian's racing schedule. An epic win in the snow at Terminillo set up Tirreno-Adriatico victory with his early-season preparation for the Tour looking good. Second place overall behind Chris Froome was the same result on paper as the 2013 Tour but the Colombian missed out on a stage win and took home the best young rider's jersey as sole consolation. This year's Tour was one that suited Quintana but with time on his side, its more likely a matter of time before when Quintana claims overall victory.
Watch the video below to see what out inCycle panellists make of the trio and how their seasons have played out.