SKT Vs KOO Tigers
Comparing the top laners both sMeb and Marin are great fiora players and their skill level is quite close to one another. They've also shown that they - both - can play other champs: Marin... Renekton, Rumble, Lissandra, Gnar. sMeb... riven, hecarim. The Mid laners... I would say even easyhoon is capable of beating Kuro, not even considering Faker. We're able to tell that Kuro has not used his event horizon efficiently and he will be punished for it. Jungles, Bengi is much better than Hojin. Hojin has always had a rough early game unlike Bengi. This is really bad for the KOOs when SKT is well known for their siege with a slight head start. Bot lane, they're on par with one another. Pray/Bang and Gorilla/Wolf are really good adcs and supports.
Overall SKT has an advantage over the KOOs and I doubt they'll make mistakes costing them the World Cup