Jatt, Deficio, and Papasmithy break down their methodology for the lolesports Top 20 players at Worlds.
You can find the full list, plus their own individual lists at http://na.leagueoflegends.com/en/featured/worlds-2017-top-20/
Time stamps:
00:40 - Top 20 Criteria
02:07 - Faker
05:30 - Longzhu - Pray, Gorilla, Khan, BDD
13:50 - Xiaohu
16:00 - Importance of mid
16:58 - BDD
18:16 - Bjergsen
22:15 - Doublelift
24:05 - Ranking ADCs - Uzi, Mystic, Bang, Pray
28:11 - Zven
30:45 - Ambition
34:59 - Condi
36:08 - Cuvee
40:49 - Swordart
44:01 - Scout
49:39 - Meiko
51:47 - Honorable mention Perkz
56:30 - Honorable mention Rekkles
58:46 - Honorable mention Ruler
