I really hope in a Fnatic win
I might be biased since i am EUW, but what they did in worlds was awesome: they showed how you can play many different things effectively and win. Like season 1, they are teaching the world again how to play League of Legends.
But they are not the best team, others trained more in same strats and mechanics and that is strong too, so much that strategic diversity alone can' t win alone games. Having them win worlds makes their way to play have a stronger mean, and actually help the overall culture of the game. It is not necessary however, and in any case i hope this experience will carry on.