World class players

I've run this sort of topic a few times over the last few years with the previous one (link below) just after the 2015 RWC.

https://www.606v2.com/t61102p100-world-class-players-top-3-in-the-world-in-each-position

Given how arbitrary a moniker many find 'World Class' to be I've always found it curious that it's thrown around so often. The most common 'definition' (if that's the correct term) that people give it is that a world class player should be one of the top 3 players in the world in their position.

As such, below is my latest attempt at a very subejective topic:

1.Chapparo, Nariashvilli, Moody
2.Coles, Creevy, Guirado
3.O Franks, Herrara, WP Nel
4.Retallick, Itoje, Etzebeth
5.Whitelock, Kruis, Pieter-Steph du Toit
6.Kaino, Stander, Matera
7.Hooper, Pocock, Gorgodze
8.Read, B Vunipola, Isa

9.A Smith, Murray, B Youngs
10.Barrett, Sexton, Cruden

11.Savea, Nadolo, DTH van der Merwe
12.Fofana, Crotty, Henshaw
13.Lienert-Brown, Joseph, Kerevi
14.Cordero, Dagg, Watson
15.Folau, B Smith, Hogg

Notable ommisions:

Adriann Strauss
Shota Horie - continuing as he did in the RWC and leading Japan very well without several key players
Rory Best
Dan Cole
Sekope Kepu
Lorezo Cittadini
Levan Chilachava - Along with his countryman below he is rock in the scrum. Both make up a long list of THs without much between them
Davit Kubriashvili
Iain Henderson
Alun Wyn Jones
Lood de Jager - A really tough call between him and countryman Pieter-Steph du Toit
Jonny Gray
Chris Robshaw
Louis Picamoles
Talupe Faletau
Amanaki Mafi
Will Genia
Rhys Webb
Bernard Foley
George Ford
Nicholas Sanchez - Argentina are a completely different side with Sanchez at the helm
Reece Hodge
George North - Known quality but out of form
Willie le Roux
Brice Dulin

Injured but would have been included otherwise - Louw (7), SBW (13), Huget (11/14)

Tough positions this year were lock and number 8 due to many standout players. Centres and wings on the other hand were tough as I was almost clutching for names with Nonu and Smith retired, plus SBW injured. Neither are positions of standout strength currently.

Gorgodze at openside will irk a few but I was struggling for a third and he is a wonderful player who is leading Georgia as expected from 7.

5 tight heads in the 'notable omissions' looks ridiculous but along with the 3 named I think there are currently a lot of good THs without much separating them. Herrera is a fantastic player though and Owen Franks has been at his best this year.