Here's clans by 1v1 ladder participation (all-time, all-matches):
(unclanned) 176021
[Lynx] 6055
[REGL] The Red Eagles 4358
Appalachian Warlight Federation 4066
MASTER Clan 3728
[WG] 3564
[V.I.W] Very Important Weirdos 3161
VS 3140
|GG| 2920
ILLUMINATI ▲ 2880
[BR] FUDEW 2789
{101st} 2703
Coalition Of Role Playing Friends 2671
The League of Erroneous Aspirations 2546
Apex 2503
French Community 2479
[Blitz] 2459
ONE! 2257
Acme Co. 1951
The Juggernauts Clan 1748
DARKLORDS 1712
The Clan of Warlighters 1532
M'Hunters 1485
German Warlords 1456
Stahlgewittern 1368
The Poon Squad 1330
SNinja 1275
Icelandic Turtles 1248
Brothers in Arms 1189
The Royal Falcons 1100
Horse Guards 1051
Divided We Fall 1035
Tranquility 1023
{rp} The Roleplayers Guild 922
**[KK]** 908
Yin-Yang 891
The Lost Wolves 844
Vitrix Mortalis 760
GeZyS 671
League of Nations 668
[NL] Dutch Forever 667
|[XS]| 603
[M4K] M-M-M-MONSTERKILL 588
Lu Fredd 545
[20] 530
{Vaders Fist} 503
[TUC] 494
Preußen Garde 485
That 1 Clan 474
The Ohms 359
{W.U} Westeros United 285
Optimum 278
High Kings 270
Vikinger 247
The Dudes 235
Young Money Cash Money 232
General Chou Frisé's Winter Wonderland Brigade 186
Mongols 185
HAWKS 166
The New Dacians 143
{Olympus} 140
The Gentlemen's Clan 131
Clan Español 126
Union of Soviet Socialist Republics 103
The "G " Spot 103
WarLight Staff 91
ΑΘΕ 89
Brazil 88
Voodoo princes 74
Legends 73
Time Lords of Gallifrey 60
[UN] United Nations 50
LT UNITED 41
[T4R] 40
Super Cute Marshmallow Gum Drop Warriors 25
The Blue Pentavirate 4